100312031320 has 16 divisors (see below), whose sum is σ = 225702070560. Its totient is φ = 40124812512.

The previous prime is 100312031293. The next prime is 100312031357. The reversal of 100312031320 is 23130213001.

It is a junction number, because it is equal to n+sod(n) for n = 100312031294 and 100312031303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253900352 + ... + 1253900431.

It is an arithmetic number, because the mean of its divisors is an integer number (14106379410).

Almost surely, 2^100312031320 is an apocalyptic number.

100312031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100312031320 is an abundant number, since it is smaller than the sum of its proper divisors (125390039240).

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

100312031320 is a wasteful number, since it uses less digits than its factorization.

100312031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507800794 (or 2507800790 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100312031320 its reverse (23130213001), we get a palindrome (123442244321).

The spelling of 100312031320 in words is "one hundred billion, three hundred twelve million, thirty-one thousand, three hundred twenty".