113521023 has 24 divisors (see below), whose sum is σ = 204437376. Its totient is φ = 58971600.

The previous prime is 113521021. The next prime is 113521073. The reversal of 113521023 is 320125311.

It is not a de Polignac number, because 113521023 - 2¹ = 113521021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113520987 and 113521005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113521021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81213 + ... + 82598.

It is an arithmetic number, because the mean of its divisors is an integer number (8518224).

Almost surely, 2^113521023 is an apocalyptic number.

113521023 is a deficient number, since it is larger than the sum of its proper divisors (90916353).

113521023 is a wasteful number, since it uses less digits than its factorization.

113521023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163835 (or 163832 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 113521023 is about 10654.6244889250. The cubic root of 113521023 is about 484.2007212796.

Adding to 113521023 its reverse (320125311), we get a palindrome (433646334).

The spelling of 113521023 in words is "one hundred thirteen million, five hundred twenty-one thousand, twenty-three".