113213737523 has 4 divisors (see below), whose sum is σ = 119873369160. Its totient is φ = 106554105888.

The previous prime is 113213737447. The next prime is 113213737529. The reversal of 113213737523 is 325737312311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113213737523 - 2⁸ = 113213737267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113213737529) 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, 3329815793 + ... + 3329815826.

It is an arithmetic number, because the mean of its divisors is an integer number (29968342290).

Almost surely, 2^113213737523 is an apocalyptic number.

113213737523 is a deficient number, since it is larger than the sum of its proper divisors (6659631637).

113213737523 is an equidigital number, since it uses as much as digits as its factorization.

113213737523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659631636.

The product of its digits is 79380, while the sum is 38.

The spelling of 113213737523 in words is "one hundred thirteen billion, two hundred thirteen million, seven hundred thirty-seven thousand, five hundred twenty-three".