23020831 has 2 divisors, whose sum is σ = 23020832. Its totient is φ = 23020830.

The previous prime is 23020793. The next prime is 23020843. The reversal of 23020831 is 13802032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23020831 is a prime.

It is a super-2 number, since 2×23020831² = 1059917319861122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23020799 and 23020808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23060831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510415 + 11510416.

It is an arithmetic number, because the mean of its divisors is an integer number (11510416).

Almost surely, 2^23020831 is an apocalyptic number.

23020831 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020831 is an equidigital number, since it uses as much as digits as its factorization.

23020831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 23020831 is about 4798.0028136715. The cubic root of 23020831 is about 284.4725280104.

Adding to 23020831 its reverse (13802032), we get a palindrome (36822863).

The spelling of 23020831 in words is "twenty-three million, twenty thousand, eight hundred thirty-one".