30131203113 has 24 divisors (see below), whose sum is σ = 48637514016. Its totient is φ = 17815934400.

The previous prime is 30131203097. The next prime is 30131203129. The reversal of 30131203113 is 31130213103.

It is a happy number.

30131203113 is a `hidden beast` number, since 301 + 31 + 20 + 311 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (30131203097) and next prime (30131203129).

It is not a de Polignac number, because 30131203113 - 2⁴ = 30131203097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30131203133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3707595 + ... + 3715712.

It is an arithmetic number, because the mean of its divisors is an integer number (2026563084).

Almost surely, 2^30131203113 is an apocalyptic number.

30131203113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30131203113 is a deficient number, since it is larger than the sum of its proper divisors (18506310903).

30131203113 is a wasteful number, since it uses less digits than its factorization.

30131203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7423365 (or 7423362 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30131203113 its reverse (31130213103), we get a palindrome (61261416216).

The spelling of 30131203113 in words is "thirty billion, one hundred thirty-one million, two hundred three thousand, one hundred thirteen".