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1031130210220 = 2251137126674473
BaseRepresentation
bin11110000000101000010…
…01100101111110101100
310122120112020101221210221
433000110021211332230
5113343223313211340
62105410014541124
7134332240113265
oct17002411457654
93576466357727
101031130210220
11368333138660
12147a0b5077a4
137630985b186
1437c9aa1596c
151bc4e6e244a
hexf014265fac

1031130210220 has 48 divisors (see below), whose sum is σ = 2426069526048. Its totient is φ = 364822479360.

The previous prime is 1031130210217. The next prime is 1031130210251. The reversal of 1031130210220 is 220120311301.

It is a junction number, because it is equal to n+sod(n) for n = 1031130210194 and 1031130210203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63329097 + ... + 63345376.

It is an arithmetic number, because the mean of its divisors is an integer number (50543115126).

Almost surely, 21031130210220 is an apocalyptic number.

1031130210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031130210220 is an abundant number, since it is smaller than the sum of its proper divisors (1394939315828).

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

1031130210220 is a wasteful number, since it uses less digits than its factorization.

1031130210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126674530 (or 126674528 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1031130210220 its reverse (220120311301), we get a palindrome (1251250521521).

The spelling of 1031130210220 in words is "one trillion, thirty-one billion, one hundred thirty million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 37 44 55 74 110 148 185 220 370 407 740 814 1628 2035 4070 8140 126674473 253348946 506697892 633372365 1266744730 1393419203 2533489460 2786838406 4686955501 5573676812 6967096015 9373911002 13934192030 18747822004 23434777505 27868384060 46869555010 51556510511 93739110020 103113021022 206226042044 257782552555 515565105110 1031130210220