113438131129 has 2 divisors, whose sum is σ = 113438131130. Its totient is φ = 113438131128.

The previous prime is 113438131061. The next prime is 113438131181. The reversal of 113438131129 is 921131834311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108290355625 + 5147775504 = 329075^2 + 71748^2 .

It is a cyclic number.

It is not a de Polignac number, because 113438131129 - 2¹¹ = 113438129081 is a prime.

It is not a weakly prime, because it can be changed into another prime (113438131189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56719065564 + 56719065565.

It is an arithmetic number, because the mean of its divisors is an integer number (56719065565).

Almost surely, 2^113438131129 is an apocalyptic number.

It is an amenable number.

113438131129 is a deficient number, since it is larger than the sum of its proper divisors (1).

113438131129 is an equidigital number, since it uses as much as digits as its factorization.

113438131129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The spelling of 113438131129 in words is "one hundred thirteen billion, four hundred thirty-eight million, one hundred thirty-one thousand, one hundred twenty-nine".