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123212113332 = 223711133346443
BaseRepresentation
bin111001011000000000…
…0111010010110110100
3102210000212022212121220
41302300000322112310
54004314300111312
6132334115110340
711621211453210
oct1626000722664
9383025285556
10123212113332
1148288031440
121ba675a23b0
13b807807649
145d6bba5940
153311e97c8c
hex1cb003a5b4

123212113332 has 48 divisors (see below), whose sum is σ = 358435241472. Its totient is φ = 32003146080.

The previous prime is 123212113291. The next prime is 123212113357. The reversal of 123212113332 is 233311212321.

It is a super-2 number, since 2×1232121133322 (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66672298 + ... + 66674145.

It is an arithmetic number, because the mean of its divisors is an integer number (7467400864).

Almost surely, 2123212113332 is an apocalyptic number.

123212113332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123212113332 is an abundant number, since it is smaller than the sum of its proper divisors (235223128140).

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

123212113332 is a wasteful number, since it uses less digits than its factorization.

123212113332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133346468 (or 133346466 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 123212113332 its reverse (233311212321), we get a palindrome (356523325653).

The spelling of 123212113332 in words is "one hundred twenty-three billion, two hundred twelve million, one hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 133346443 266692886 400039329 533385772 800078658 933425101 1466810873 1600157316 1866850202 2800275303 2933621746 3733700404 4400432619 5600550606 5867243492 8800865238 10267676111 11201101212 17601730476 20535352222 30803028333 41070704444 61606056666 123212113332