113911129 has 2 divisors, whose sum is σ = 113911130. Its totient is φ = 113911128.

The previous prime is 113911121. The next prime is 113911139. The reversal of 113911129 is 921119311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105616729 + 8294400 = 10277^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 113911129 - 2³ = 113911121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113911097 and 113911106.

It is not a weakly prime, because it can be changed into another prime (113911121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56955564 + 56955565.

It is an arithmetic number, because the mean of its divisors is an integer number (56955565).

Almost surely, 2^113911129 is an apocalyptic number.

It is an amenable number.

113911129 is a deficient number, since it is larger than the sum of its proper divisors (1).

113911129 is an equidigital number, since it uses as much as digits as its factorization.

113911129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 28.

The square root of 113911129 is about 10672.9156747348. The cubic root of 113911129 is about 484.7547263020.

The spelling of 113911129 in words is "one hundred thirteen million, nine hundred eleven thousand, one hundred twenty-nine".