113355578891 has 2 divisors, whose sum is σ = 113355578892. Its totient is φ = 113355578890.

The previous prime is 113355578863. The next prime is 113355578923. The reversal of 113355578891 is 198875553311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113355578891 - 2³⁰ = 112281837067 is a prime.

It is not a weakly prime, because it can be changed into another prime (113355578291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56677789445 + 56677789446.

It is an arithmetic number, because the mean of its divisors is an integer number (56677789446).

Almost surely, 2^113355578891 is an apocalyptic number.

113355578891 is a deficient number, since it is larger than the sum of its proper divisors (1).

113355578891 is an equidigital number, since it uses as much as digits as its factorization.

113355578891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 56.

The spelling of 113355578891 in words is "one hundred thirteen billion, three hundred fifty-five million, five hundred seventy-eight thousand, eight hundred ninety-one".