10313031312 has 120 divisors (see below), whose sum is σ = 29776296576. Its totient is φ = 3329641728.

The previous prime is 10313031293. The next prime is 10313031329. The reversal of 10313031312 is 21313031301.

It is a happy number.

10313031312 is a `hidden beast` number, since 10 + 313 + 0 + 31 + 312 = 666.

It is a super-2 number, since 2×10313031312² (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 23 ways as a sum of consecutive naturals, for example, 1205193 + ... + 1213719.

Almost surely, 2^10313031312 is an apocalyptic number.

10313031312 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 10313031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14888148288).

10313031312 is an abundant number, since it is smaller than the sum of its proper divisors (19463265264).

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

10313031312 is a wasteful number, since it uses less digits than its factorization.

10313031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805 (or 8796 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 10313031312 its reverse (21313031301), we get a palindrome (31626062613).

The spelling of 10313031312 in words is "ten billion, three hundred thirteen million, thirty-one thousand, three hundred twelve".