23903293903 has 4 divisors (see below), whose sum is σ = 23904764928. Its totient is φ = 23901822880.

The previous prime is 23903293889. The next prime is 23903293913. The reversal of 23903293903 is 30939230932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23903293903 - 2⁵ = 23903293871 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 23903293903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23903293913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710863 + ... + 743728.

It is an arithmetic number, because the mean of its divisors is an integer number (5976191232).

Almost surely, 2^23903293903 is an apocalyptic number.

23903293903 is a deficient number, since it is larger than the sum of its proper divisors (1471025).

23903293903 is a wasteful number, since it uses less digits than its factorization.

23903293903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471024.

The product of its (nonzero) digits is 236196, while the sum is 43.

The spelling of 23903293903 in words is "twenty-three billion, nine hundred three million, two hundred ninety-three thousand, nine hundred three".