30131102320 has 40 divisors (see below), whose sum is σ = 76423434480. Its totient is φ = 10956764160.

The previous prime is 30131102303. The next prime is 30131102357. The reversal of 30131102320 is 2320113103.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30131102294 and 30131102303.

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, 17119065 + ... + 17120824.

It is an arithmetic number, because the mean of its divisors is an integer number (1910585862).

Almost surely, 2^30131102320 is an apocalyptic number.

It is an amenable number.

30131102320 is an abundant number, since it is smaller than the sum of its proper divisors (46292332160).

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

30131102320 is a wasteful number, since it uses less digits than its factorization.

30131102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34239913 (or 34239907 counting only the distinct ones).

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

Adding to 30131102320 its reverse (2320113103), we get a palindrome (32451215423).

The spelling of 30131102320 in words is "thirty billion, one hundred thirty-one million, one hundred two thousand, three hundred twenty".