23513603 has 2 divisors, whose sum is σ = 23513604. Its totient is φ = 23513602.

The previous prime is 23513599. The next prime is 23513617. The reversal of 23513603 is 30631532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23513603 - 2² = 23513599 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23513663) 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 as a sum of consecutive naturals, namely, 11756801 + 11756802.

It is an arithmetic number, because the mean of its divisors is an integer number (11756802).

Almost surely, 2^23513603 is an apocalyptic number.

23513603 is a deficient number, since it is larger than the sum of its proper divisors (1).

23513603 is an equidigital number, since it uses as much as digits as its factorization.

23513603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 23513603 is about 4849.0826967582. The cubic root of 23513603 is about 286.4879724328.

The spelling of 23513603 in words is "twenty-three million, five hundred thirteen thousand, six hundred three".