23642540003 has 16 divisors (see below), whose sum is σ = 24772447200. Its totient is φ = 22547393280.

The previous prime is 23642539981. The next prime is 23642540021. The reversal of 23642540003 is 30004524632.

It is a cyclic number.

It is not a de Polignac number, because 23642540003 - 2⁸ = 23642539747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23642540303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217733 + ... + 307721.

It is an arithmetic number, because the mean of its divisors is an integer number (1548277950).

Almost surely, 2^23642540003 is an apocalyptic number.

23642540003 is a deficient number, since it is larger than the sum of its proper divisors (1129907197).

23642540003 is an equidigital number, since it uses as much as digits as its factorization.

23642540003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90182.

The product of its (nonzero) digits is 17280, while the sum is 29.

The spelling of 23642540003 in words is "twenty-three billion, six hundred forty-two million, five hundred forty thousand, three".