23235631 has 2 divisors, whose sum is σ = 23235632. Its totient is φ = 23235630.

The previous prime is 23235629. The next prime is 23235637. The reversal of 23235631 is 13653232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23235631 - 2¹ = 23235629 is a prime.

It is a super-2 number, since 2×23235631² = 1079789095936322, which contains 22 as substring.

Together with 23235629, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23235596 and 23235605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23235637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11617815 + 11617816.

It is an arithmetic number, because the mean of its divisors is an integer number (11617816).

Almost surely, 2^23235631 is an apocalyptic number.

23235631 is a deficient number, since it is larger than the sum of its proper divisors (1).

23235631 is an equidigital number, since it uses as much as digits as its factorization.

23235631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 23235631 is about 4820.3351543228. The cubic root of 23235631 is about 285.3545643515.

Adding to 23235631 its reverse (13653232), we get a palindrome (36888863).

The spelling of 23235631 in words is "twenty-three million, two hundred thirty-five thousand, six hundred thirty-one".