113253445531 has 4 divisors (see below), whose sum is σ = 113254135600. Its totient is φ = 113252755464.

The previous prime is 113253445523. The next prime is 113253445549. The reversal of 113253445531 is 135544352311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 135544352311 = 9433 ⋅14369167.

It is a cyclic number.

It is not a de Polignac number, because 113253445531 - 2³ = 113253445523 is a prime.

It is a super-2 number, since 2×113253445531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113253445561) 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, 58330 + ... + 479488.

It is an arithmetic number, because the mean of its divisors is an integer number (28313533900).

Almost surely, 2^113253445531 is an apocalyptic number.

113253445531 is a deficient number, since it is larger than the sum of its proper divisors (690069).

113253445531 is an equidigital number, since it uses as much as digits as its factorization.

113253445531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690068.

The product of its digits is 108000, while the sum is 37.

Adding to 113253445531 its reverse (135544352311), we get a palindrome (248797797842).

The spelling of 113253445531 in words is "one hundred thirteen billion, two hundred fifty-three million, four hundred forty-five thousand, five hundred thirty-one".