30332053921 has 9 divisors (see below), whose sum is σ = 32847220281. Its totient is φ = 27996729072.

The previous prime is 30332053907. The next prime is 30332053933. The reversal of 30332053921 is 12935023303.

The square root of 30332053921 is 174161.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 21269013921 + 9063040000 = 145839^2 + 95200^2 .

It is not a de Polignac number, because 30332053921 - 2¹¹ = 30332051873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30332053981) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2257395 + ... + 2270791.

Almost surely, 2^30332053921 is an apocalyptic number.

30332053921 is the 174161-st square number.

30332053921 is the 87081-st centered octagonal number.

It is an amenable number.

30332053921 is a deficient number, since it is larger than the sum of its proper divisors (2515166360).

30332053921 is an frugal number, since it uses more digits than its factorization.

30332053921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26820 (or 13410 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 31.

The spelling of 30332053921 in words is "thirty billion, three hundred thirty-two million, fifty-three thousand, nine hundred twenty-one".