23115123 has 12 divisors (see below), whose sum is σ = 34165560. Its totient is φ = 15051456.

The previous prime is 23115109. The next prime is 23115133. The reversal of 23115123 is 32151132.

It is not a de Polignac number, because 23115123 - 2²⁴ = 6337907 is a prime.

It is a super-2 number, since 2×23115123² = 1068617822610258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23115096 and 23115105.

It is not an unprimeable number, because it can be changed into a prime (23115133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29478 + ... + 30251.

It is an arithmetic number, because the mean of its divisors is an integer number (2847130).

Almost surely, 2^23115123 is an apocalyptic number.

23115123 is a deficient number, since it is larger than the sum of its proper divisors (11050437).

23115123 is a wasteful number, since it uses less digits than its factorization.

23115123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59778 (or 59775 counting only the distinct ones).

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

The square root of 23115123 is about 4807.8189441783. The cubic root of 23115123 is about 284.8603933056.

Adding to 23115123 its reverse (32151132), we get a palindrome (55266255).

The spelling of 23115123 in words is "twenty-three million, one hundred fifteen thousand, one hundred twenty-three".