23073503493 has 4 divisors (see below), whose sum is σ = 30764671328. Its totient is φ = 15382335660.

The previous prime is 23073503473. The next prime is 23073503573. The reversal of 23073503493 is 39430537032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23073503493 - 2¹⁰ = 23073502469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23073503443) 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, 3845583913 + ... + 3845583918.

It is an arithmetic number, because the mean of its divisors is an integer number (7691167832).

Almost surely, 2^23073503493 is an apocalyptic number.

It is an amenable number.

23073503493 is a deficient number, since it is larger than the sum of its proper divisors (7691167835).

23073503493 is an equidigital number, since it uses as much as digits as its factorization.

23073503493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7691167834.

The product of its (nonzero) digits is 204120, while the sum is 39.

The spelling of 23073503493 in words is "twenty-three billion, seventy-three million, five hundred three thousand, four hundred ninety-three".