23431315 has 16 divisors (see below), whose sum is σ = 28740096. Its totient is φ = 18335200.

The previous prime is 23431301. The next prime is 23431327. The reversal of 23431315 is 51313432.

It is not a de Polignac number, because 23431315 - 2⁵ = 23431283 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 54150 + ... + 54580.

It is an arithmetic number, because the mean of its divisors is an integer number (1796256).

Almost surely, 2^23431315 is an apocalyptic number.

23431315 is a deficient number, since it is larger than the sum of its proper divisors (5308781).

23431315 is a wasteful number, since it uses less digits than its factorization.

23431315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650.

The product of its digits is 1080, while the sum is 22.

The square root of 23431315 is about 4840.5903565578. The cubic root of 23431315 is about 286.1533848855.

Adding to 23431315 its reverse (51313432), we get a palindrome (74744747).

The spelling of 23431315 in words is "twenty-three million, four hundred thirty-one thousand, three hundred fifteen".