12313130112 has 160 divisors (see below), whose sum is σ = 37246304700. Its totient is φ = 4036884480.

The previous prime is 12313130003. The next prime is 12313130143. The reversal of 12313130112 is 21103131321.

It can be written as a sum of positive squares in 2 ways, for example, as 10704799296 + 1608330816 = 103464^2 + 40104^2 .

It is a super-2 number, since 2×12313130112² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 622714 + ... + 642182.

Almost surely, 2^12313130112 is an apocalyptic number.

12313130112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12313130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18623152350).

12313130112 is an abundant number, since it is smaller than the sum of its proper divisors (24933174588).

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

12313130112 is an equidigital number, since it uses as much as digits as its factorization.

12313130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19556 (or 19535 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12313130112 its reverse (21103131321), we get a palindrome (33416261433).

The spelling of 12313130112 in words is "twelve billion, three hundred thirteen million, one hundred thirty thousand, one hundred twelve".