30531524421 has 16 divisors (see below), whose sum is σ = 41130160128. Its totient is φ = 20143800000.

The previous prime is 30531524389. The next prime is 30531524449. The reversal of 30531524421 is 12442513503.

It is not a de Polignac number, because 30531524421 - 2⁵ = 30531524389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30531574421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692796 + ... + 735546.

It is an arithmetic number, because the mean of its divisors is an integer number (2570635008).

Almost surely, 2^30531524421 is an apocalyptic number.

It is an amenable number.

30531524421 is a deficient number, since it is larger than the sum of its proper divisors (10598635707).

30531524421 is a wasteful number, since it uses less digits than its factorization.

30531524421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45212.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 30531524421 in words is "thirty billion, five hundred thirty-one million, five hundred twenty-four thousand, four hundred twenty-one".