10122111931 has 2 divisors, whose sum is σ = 10122111932. Its totient is φ = 10122111930.

The previous prime is 10122111917. The next prime is 10122111943. The reversal of 10122111931 is 13911122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10122111931 - 2¹¹ = 10122109883 is a prime.

It is a super-2 number, since 2×10122111931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10122111991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061055965 + 5061055966.

It is an arithmetic number, because the mean of its divisors is an integer number (5061055966).

Almost surely, 2^10122111931 is an apocalyptic number.

10122111931 is a deficient number, since it is larger than the sum of its proper divisors (1).

10122111931 is an equidigital number, since it uses as much as digits as its factorization.

10122111931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 10122111931 in words is "ten billion, one hundred twenty-two million, one hundred eleven thousand, nine hundred thirty-one".