30131020131 has 16 divisors (see below), whose sum is σ = 40474627200. Its totient is φ = 19937458368.

The previous prime is 30131020123. The next prime is 30131020141. The reversal of 30131020131 is 13102013103.

It is not a de Polignac number, because 30131020131 - 2³ = 30131020123 is a prime.

It is a super-2 number, since 2×30131020131² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30131020131.

It is not an unprimeable number, because it can be changed into a prime (30131020141) 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, 2072335 + ... + 2086823.

It is an arithmetic number, because the mean of its divisors is an integer number (2529664200).

Almost surely, 2^30131020131 is an apocalyptic number.

30131020131 is a deficient number, since it is larger than the sum of its proper divisors (10343607069).

30131020131 is a wasteful number, since it uses less digits than its factorization.

30131020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19618.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 30131020131 its reverse (13102013103), we get a palindrome (43233033234).

The spelling of 30131020131 in words is "thirty billion, one hundred thirty-one million, twenty thousand, one hundred thirty-one".