23431115 has 12 divisors (see below), whose sum is σ = 28445664. Its totient is φ = 18528384.

The previous prime is 23431103. The next prime is 23431127. The reversal of 23431115 is 51113432.

It is an interprime number because it is at equal distance from previous prime (23431103) and next prime (23431127).

It is not a de Polignac number, because 23431115 - 2¹⁰ = 23430091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63662 + ... + 64028.

It is an arithmetic number, because the mean of its divisors is an integer number (2370472).

Almost surely, 2^23431115 is an apocalyptic number.

23431115 is a deficient number, since it is larger than the sum of its proper divisors (5014549).

23431115 is an equidigital number, since it uses as much as digits as its factorization.

23431115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 485 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 23431115 is about 4840.5696978765. The cubic root of 23431115 is about 286.1525707210.

Adding to 23431115 its reverse (51113432), we get a palindrome (74544547).

The spelling of 23431115 in words is "twenty-three million, four hundred thirty-one thousand, one hundred fifteen".