23131827 has 6 divisors (see below), whose sum is σ = 33412652. Its totient is φ = 15421212.

The previous prime is 23131811. The next prime is 23131837. The reversal of 23131827 is 72813132.

It is not a de Polignac number, because 23131827 - 2⁴ = 23131811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23131827.

It is not an unprimeable number, because it can be changed into a prime (23131837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1285093 + ... + 1285110.

Almost surely, 2^23131827 is an apocalyptic number.

23131827 is a deficient number, since it is larger than the sum of its proper divisors (10280825).

23131827 is a wasteful number, since it uses less digits than its factorization.

23131827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570209 (or 2570206 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 23131827 is about 4809.5558006951. Note that the first 3 decimals coincide. The cubic root of 23131827 is about 284.9289943146.

Adding to 23131827 its reverse (72813132), we get a palindrome (95944959).

The spelling of 23131827 in words is "twenty-three million, one hundred thirty-one thousand, eight hundred twenty-seven".