113263975553 has 4 divisors (see below), whose sum is σ = 113918680788. Its totient is φ = 112609270320.

The previous prime is 113263975543. The next prime is 113263975567. The reversal of 113263975553 is 355579362311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355579362311 = 311 ⋅1143342001.

It can be written as a sum of positive squares in 2 ways, for example, as 97040349169 + 16223626384 = 311513^2 + 127372^2 .

It is a cyclic number.

It is not a de Polignac number, because 113263975553 - 2⁴ = 113263975537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113263975543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327352358 + ... + 327352703.

It is an arithmetic number, because the mean of its divisors is an integer number (28479670197).

Almost surely, 2^113263975553 is an apocalyptic number.

It is an amenable number.

113263975553 is a deficient number, since it is larger than the sum of its proper divisors (654705235).

113263975553 is an equidigital number, since it uses as much as digits as its factorization.

113263975553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654705234.

The product of its digits is 2551500, while the sum is 50.

The spelling of 113263975553 in words is "one hundred thirteen billion, two hundred sixty-three million, nine hundred seventy-five thousand, five hundred fifty-three".