113021879129 has 2 divisors, whose sum is σ = 113021879130. Its totient is φ = 113021879128.

The previous prime is 113021879083. The next prime is 113021879137. The reversal of 113021879129 is 921978120311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112056223504 + 965655625 = 334748^2 + 31075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113021879129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113021879129.

It is not a weakly prime, because it can be changed into another prime (113021875129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56510939564 + 56510939565.

It is an arithmetic number, because the mean of its divisors is an integer number (56510939565).

Almost surely, 2^113021879129 is an apocalyptic number.

It is an amenable number.

113021879129 is a deficient number, since it is larger than the sum of its proper divisors (1).

113021879129 is an equidigital number, since it uses as much as digits as its factorization.

113021879129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 113021879129 in words is "one hundred thirteen billion, twenty-one million, eight hundred seventy-nine thousand, one hundred twenty-nine".