100031130320 has 40 divisors (see below), whose sum is σ = 253715323680. Its totient is φ = 36374956160.

The previous prime is 100031130319. The next prime is 100031130337. The reversal of 100031130320 is 23031130001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 100031130295 and 100031130304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56834990 + ... + 56836749.

It is an arithmetic number, because the mean of its divisors is an integer number (6342883092).

Almost surely, 2^100031130320 is an apocalyptic number.

100031130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100031130320 is an abundant number, since it is smaller than the sum of its proper divisors (153684193360).

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

100031130320 is a wasteful number, since it uses less digits than its factorization.

100031130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113671763 (or 113671757 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 100031130320 its reverse (23031130001), we get a palindrome (123062260321).

The spelling of 100031130320 in words is "one hundred billion, thirty-one million, one hundred thirty thousand, three hundred twenty".