30513260831 has 16 divisors (see below), whose sum is σ = 31434374400. Its totient is φ = 29602298880.

The previous prime is 30513260809. The next prime is 30513260887. The reversal of 30513260831 is 13806231503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30513260831 is a prime.

It is a super-2 number, since 2×30513260831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30513260231) 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, 5482256 + ... + 5487818.

It is an arithmetic number, because the mean of its divisors is an integer number (1964648400).

Almost surely, 2^30513260831 is an apocalyptic number.

30513260831 is a deficient number, since it is larger than the sum of its proper divisors (921113569).

30513260831 is a wasteful number, since it uses less digits than its factorization.

30513260831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 30513260831 in words is "thirty billion, five hundred thirteen million, two hundred sixty thousand, eight hundred thirty-one".