23163831 has 12 divisors (see below), whose sum is σ = 35220120. Its totient is φ = 14629680.

The previous prime is 23163797. The next prime is 23163839. The reversal of 23163831 is 13836132.

It is a happy number.

23163831 is a `hidden beast` number, since 23 + 1 + 638 + 3 + 1 = 666.

It is not a de Polignac number, because 23163831 - 2¹⁰ = 23162807 is a prime.

It is a super-2 number, since 2×23163831² = 1073126133193122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23163795 and 23163804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23163839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67560 + ... + 67901.

It is an arithmetic number, because the mean of its divisors is an integer number (2935010).

Almost surely, 2^23163831 is an apocalyptic number.

23163831 is a deficient number, since it is larger than the sum of its proper divisors (12056289).

23163831 is a wasteful number, since it uses less digits than its factorization.

23163831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135486 (or 135483 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 23163831 is about 4812.8817770645. The cubic root of 23163831 is about 285.0603381020.

Adding to 23163831 its reverse (13836132), we get a palindrome (36999963).

The spelling of 23163831 in words is "twenty-three million, one hundred sixty-three thousand, eight hundred thirty-one".