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10031132112012 = 22331126931389271
BaseRepresentation
bin1001000111111000111000…
…0100001111010010001100
31022111222002211210101221000
42101332032010033102030
52303322224310041022
633200123302140300
72053503543052254
oct221761604172214
938458084711830
1010031132112012
1132181a7625610
121160125a21690
13579c15c3568b
1426971ba74964
15125ded1476ac
hex91f8e10f48c

10031132112012 has 96 divisors (see below), whose sum is σ = 28476347558400. Its totient is φ = 3028436769600.

The previous prime is 10031132112007. The next prime is 10031132112017. The reversal of 10031132112012 is 21021123113001.

10031132112012 is a `hidden beast` number, since 1 + 0 + 0 + 311 + 321 + 1 + 20 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (10031132112007) and next prime (10031132112017).

It is a super-2 number, since 2×100311321120122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10031132112017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15375064 + ... + 16014207.

It is an arithmetic number, because the mean of its divisors is an integer number (296628620400).

Almost surely, 210031132112012 is an apocalyptic number.

10031132112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10031132112012 is an abundant number, since it is smaller than the sum of its proper divisors (18445215446388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10031132112012 is a wasteful number, since it uses less digits than its factorization.

10031132112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31389564 (or 31389556 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 10031132112012 its reverse (21021123113001), we get a palindrome (31052255225013).

The spelling of 10031132112012 in words is "ten trillion, thirty-one billion, one hundred thirty-two million, one hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 269 297 396 538 594 807 1076 1188 1614 2421 2959 3228 4842 5918 7263 8877 9684 11836 14526 17754 26631 29052 35508 53262 79893 106524 159786 319572 31389271 62778542 94167813 125557084 188335626 282503439 345281981 376671252 565006878 690563962 847510317 1035845943 1130013756 1381127924 1695020634 2071691886 3107537829 3390041268 4143383772 6215075658 8443713899 9322613487 12430151316 16887427798 18645226974 25331141697 33774855596 37290453948 50662283394 75993425091 92880852889 101324566788 151986850182 185761705778 227980275273 278642558667 303973700364 371523411556 455960550546 557285117334 835927676001 911921101092 1114570234668 1671855352002 2507783028003 3343710704004 5015566056006 10031132112012