30131112231 has 48 divisors (see below), whose sum is σ = 48685797888. Its totient is φ = 17802892800.

The previous prime is 30131112217. The next prime is 30131112241. The reversal of 30131112231 is 13221113103.

30131112231 is a `hidden beast` number, since 301 + 311 + 1 + 22 + 31 = 666.

It is not a de Polignac number, because 30131112231 - 2¹⁴ = 30131095847 is a prime.

It is a super-2 number, since 2×30131112231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131112241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 619986 + ... + 666816.

It is an arithmetic number, because the mean of its divisors is an integer number (1014287456).

Almost surely, 2^30131112231 is an apocalyptic number.

30131112231 is a deficient number, since it is larger than the sum of its proper divisors (18554685657).

30131112231 is a wasteful number, since it uses less digits than its factorization.

30131112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47012 (or 47009 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30131112231 its reverse (13221113103), we get a palindrome (43352225334).

The spelling of 30131112231 in words is "thirty billion, one hundred thirty-one million, one hundred twelve thousand, two hundred thirty-one".