22823131 has 2 divisors, whose sum is σ = 22823132. Its totient is φ = 22823130.

The previous prime is 22823113. The next prime is 22823173. The reversal of 22823131 is 13132822.

Together with previous prime (22823113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22823131 is a prime.

It is a super-2 number, since 2×22823131² = 1041790617286322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22823831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11411565 + 11411566.

It is an arithmetic number, because the mean of its divisors is an integer number (11411566).

Almost surely, 2^22823131 is an apocalyptic number.

22823131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22823131 is an equidigital number, since it uses as much as digits as its factorization.

22823131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 22823131 is about 4777.3560679522. The cubic root of 22823131 is about 283.6558475878.

Adding to 22823131 its reverse (13132822), we get a palindrome (35955953).

The spelling of 22823131 in words is "twenty-two million, eight hundred twenty-three thousand, one hundred thirty-one".