23661023 has 6 divisors (see below), whose sum is σ = 24972264. Its totient is φ = 22415364.

The previous prime is 23661007. The next prime is 23661031. The reversal of 23661023 is 32016632.

It is not a de Polignac number, because 23661023 - 2⁴ = 23661007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23661023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23660023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32411 + ... + 33132.

It is an arithmetic number, because the mean of its divisors is an integer number (4162044).

Almost surely, 2^23661023 is an apocalyptic number.

23661023 is a deficient number, since it is larger than the sum of its proper divisors (1311241).

23661023 is an equidigital number, since it uses as much as digits as its factorization.

23661023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65581 (or 65562 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23661023 is about 4864.2597586889. The cubic root of 23661023 is about 287.0854436076.

Adding to 23661023 its reverse (32016632), we get a palindrome (55677655).

The spelling of 23661023 in words is "twenty-three million, six hundred sixty-one thousand, twenty-three".