121104112931 has 2 divisors, whose sum is σ = 121104112932. Its totient is φ = 121104112930.

The previous prime is 121104112919. The next prime is 121104112949. The reversal of 121104112931 is 139211401121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121104112931 is a prime.

It is a super-2 number, since 2×121104112931² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121104112931.

It is not a weakly prime, because it can be changed into another prime (121104112951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60552056465 + 60552056466.

It is an arithmetic number, because the mean of its divisors is an integer number (60552056466).

Almost surely, 2^121104112931 is an apocalyptic number.

121104112931 is a deficient number, since it is larger than the sum of its proper divisors (1).

121104112931 is an equidigital number, since it uses as much as digits as its factorization.

121104112931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 121104112931 in words is "one hundred twenty-one billion, one hundred four million, one hundred twelve thousand, nine hundred thirty-one".