23631013 has 16 divisors (see below), whose sum is σ = 27699840. Its totient is φ = 19742976.

The previous prime is 23631011. The next prime is 23631031. The reversal of 23631013 is 31013632.

It is a cyclic number.

It is not a de Polignac number, because 23631013 - 2¹ = 23631011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23631011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51481 + ... + 51937.

It is an arithmetic number, because the mean of its divisors is an integer number (1731240).

Almost surely, 2^23631013 is an apocalyptic number.

It is an amenable number.

23631013 is a deficient number, since it is larger than the sum of its proper divisors (4068827).

23631013 is an equidigital number, since it uses as much as digits as its factorization.

23631013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 23631013 is about 4861.1740351483. The cubic root of 23631013 is about 286.9640191714.

Adding to 23631013 its reverse (31013632), we get a palindrome (54644645).

The spelling of 23631013 in words is "twenty-three million, six hundred thirty-one thousand, thirteen".