30131122131 has 12 divisors (see below), whose sum is σ = 47479344120. Its totient is φ = 18261286080.

The previous prime is 30131122129. The next prime is 30131122141. The reversal of 30131122131 is 13122113103.

30131122131 is a `hidden beast` number, since 301 + 311 + 2 + 21 + 31 = 666.

It is not a de Polignac number, because 30131122131 - 2¹ = 30131122129 is a prime.

It is a super-2 number, since 2×30131122131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30131122141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152177286 + ... + 152177483.

It is an arithmetic number, because the mean of its divisors is an integer number (3956612010).

Almost surely, 2^30131122131 is an apocalyptic number.

30131122131 is a deficient number, since it is larger than the sum of its proper divisors (17348221989).

30131122131 is a wasteful number, since it uses less digits than its factorization.

30131122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304354786 (or 304354783 counting only the distinct ones).

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

Adding to 30131122131 its reverse (13122113103), we get a palindrome (43253235234).

The spelling of 30131122131 in words is "thirty billion, one hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty-one".