23813831 has 2 divisors, whose sum is σ = 23813832. Its totient is φ = 23813830.

The previous prime is 23813807. The next prime is 23813837. The reversal of 23813831 is 13831832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23813831 - 2⁶ = 23813767 is a prime.

It is a super-2 number, since 2×23813831² = 1134197093793122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23813794 and 23813803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23813837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11906915 + 11906916.

It is an arithmetic number, because the mean of its divisors is an integer number (11906916).

Almost surely, 2^23813831 is an apocalyptic number.

23813831 is a deficient number, since it is larger than the sum of its proper divisors (1).

23813831 is an equidigital number, since it uses as much as digits as its factorization.

23813831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 23813831 is about 4879.9417004714. The cubic root of 23813831 is about 287.7021378711.

The spelling of 23813831 in words is "twenty-three million, eight hundred thirteen thousand, eight hundred thirty-one".