23163631 has 2 divisors, whose sum is σ = 23163632. Its totient is φ = 23163630.

The previous prime is 23163629. The next prime is 23163649. The reversal of 23163631 is 13636132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23163631 - 2¹ = 23163629 is a prime.

It is a super-2 number, since 2×23163631² = 1073107602208322, which contains 22 as substring.

Together with 23163629, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23163596 and 23163605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23163601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11581815 + 11581816.

It is an arithmetic number, because the mean of its divisors is an integer number (11581816).

Almost surely, 2^23163631 is an apocalyptic number.

23163631 is a deficient number, since it is larger than the sum of its proper divisors (1).

23163631 is an equidigital number, since it uses as much as digits as its factorization.

23163631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

The square root of 23163631 is about 4812.8609994472. The cubic root of 23163631 is about 285.0595176817.

Adding to 23163631 its reverse (13636132), we get a palindrome (36799763).

The spelling of 23163631 in words is "twenty-three million, one hundred sixty-three thousand, six hundred thirty-one".