30342391931 has 2 divisors, whose sum is σ = 30342391932. Its totient is φ = 30342391930.

The previous prime is 30342391901. The next prime is 30342391967. The reversal of 30342391931 is 13919324303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30342391931 - 2³⁰ = 29268650107 is a prime.

It is a super-2 number, since 2×30342391931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30342391901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15171195965 + 15171195966.

It is an arithmetic number, because the mean of its divisors is an integer number (15171195966).

Almost surely, 2^30342391931 is an apocalyptic number.

30342391931 is a deficient number, since it is larger than the sum of its proper divisors (1).

30342391931 is an equidigital number, since it uses as much as digits as its factorization.

30342391931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 38.

The spelling of 30342391931 in words is "thirty billion, three hundred forty-two million, three hundred ninety-one thousand, nine hundred thirty-one".