30983121564 has 24 divisors (see below), whose sum is σ = 72821647248. Its totient is φ = 10252321920.

The previous prime is 30983121551. The next prime is 30983121569. The reversal of 30983121564 is 46512138903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30983121569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9421447 + ... + 9424734.

It is an arithmetic number, because the mean of its divisors is an integer number (3034235302).

Almost surely, 2^30983121564 is an apocalyptic number.

It is an amenable number.

30983121564 is an abundant number, since it is smaller than the sum of its proper divisors (41838525684).

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

30983121564 is a wasteful number, since it uses less digits than its factorization.

30983121564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18846325 (or 18846323 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 30983121564 in words is "thirty billion, nine hundred eighty-three million, one hundred twenty-one thousand, five hundred sixty-four".