30131329931 has 2 divisors, whose sum is σ = 30131329932. Its totient is φ = 30131329930.

The previous prime is 30131329919. The next prime is 30131330011. The reversal of 30131329931 is 13992313103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30131329931 - 2⁶ = 30131329867 is a prime.

It is a super-2 number, since 2×30131329931² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30131329891 and 30131329900.

It is not a weakly prime, because it can be changed into another prime (30131329031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065664965 + 15065664966.

It is an arithmetic number, because the mean of its divisors is an integer number (15065664966).

Almost surely, 2^30131329931 is an apocalyptic number.

30131329931 is a deficient number, since it is larger than the sum of its proper divisors (1).

30131329931 is an equidigital number, since it uses as much as digits as its factorization.

30131329931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 35.

The spelling of 30131329931 in words is "thirty billion, one hundred thirty-one million, three hundred twenty-nine thousand, nine hundred thirty-one".