30975577909231 has 2 divisors, whose sum is σ = 30975577909232. Its totient is φ = 30975577909230.

The previous prime is 30975577909207. The next prime is 30975577909261. The reversal of 30975577909231 is 13290977557903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30975577909231 - 2⁹ = 30975577908719 is a prime.

It is a super-2 number, since 2×30975577909231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30975577909261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15487788954615 + 15487788954616.

It is an arithmetic number, because the mean of its divisors is an integer number (15487788954616).

Almost surely, 2^{30975577909231} is an apocalyptic number.

30975577909231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30975577909231 is an equidigital number, since it uses as much as digits as its factorization.

30975577909231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112521150, while the sum is 67.

The spelling of 30975577909231 in words is "thirty trillion, nine hundred seventy-five billion, five hundred seventy-seven million, nine hundred nine thousand, two hundred thirty-one".