23042631 has 4 divisors (see below), whose sum is σ = 30723512. Its totient is φ = 15361752.

The previous prime is 23042629. The next prime is 23042653. The reversal of 23042631 is 13624032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23042631 - 2¹ = 23042629 is a prime.

It is a super-2 number, since 2×23042631² = 1061925686804322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23042598 and 23042607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23042681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840436 + ... + 3840441.

It is an arithmetic number, because the mean of its divisors is an integer number (7680878).

Almost surely, 2^23042631 is an apocalyptic number.

23042631 is a deficient number, since it is larger than the sum of its proper divisors (7680881).

23042631 is an equidigital number, since it uses as much as digits as its factorization.

23042631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680880.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23042631 is about 4800.2740546765. The cubic root of 23042631 is about 284.5622951811.

Adding to 23042631 its reverse (13624032), we get a palindrome (36666663).

The spelling of 23042631 in words is "twenty-three million, forty-two thousand, six hundred thirty-one".