23113320 has 32 divisors (see below), whose sum is σ = 69340320. Its totient is φ = 6163520.

The previous prime is 23113313. The next prime is 23113357. The reversal of 23113320 is 2331132.

It is a super-2 number, since 2×23113320² = 1068451122844800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23113320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96186 + ... + 96425.

It is an arithmetic number, because the mean of its divisors is an integer number (2166885).

Almost surely, 2^23113320 is an apocalyptic number.

23113320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23113320 is an abundant number, since it is smaller than the sum of its proper divisors (46227000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23113320 is a wasteful number, since it uses less digits than its factorization.

23113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192625 (or 192621 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 23113320 is about 4807.6314334608. The cubic root of 23113320 is about 284.8529866590.

Adding to 23113320 its reverse (2331132), we get a palindrome (25444452).

The spelling of 23113320 in words is "twenty-three million, one hundred thirteen thousand, three hundred twenty".