30597131900 has 36 divisors (see below), whose sum is σ = 67053182280. Its totient is φ = 12117672000.

The previous prime is 30597131881. The next prime is 30597131921. The reversal of 30597131900 is 913179503.

It is a super-2 number, since 2×30597131900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1504610 + ... + 1524809.

Almost surely, 2^30597131900 is an apocalyptic number.

It is an amenable number.

30597131900 is an abundant number, since it is smaller than the sum of its proper divisors (36456050380).

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

30597131900 is a wasteful number, since it uses less digits than its factorization.

30597131900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029534 (or 3029527 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 38.

The spelling of 30597131900 in words is "thirty billion, five hundred ninety-seven million, one hundred thirty-one thousand, nine hundred".