23730431057 has 4 divisors (see below), whose sum is σ = 23730739200. Its totient is φ = 23730122916.

The previous prime is 23730431017. The next prime is 23730431059. The reversal of 23730431057 is 75013403732.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23730431057 - 2¹⁶ = 23730365521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23730431059) 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, 72944 + ... + 229742.

It is an arithmetic number, because the mean of its divisors is an integer number (5932684800).

Almost surely, 2^23730431057 is an apocalyptic number.

It is an amenable number.

23730431057 is a deficient number, since it is larger than the sum of its proper divisors (308143).

23730431057 is a wasteful number, since it uses less digits than its factorization.

23730431057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308142.

The product of its (nonzero) digits is 52920, while the sum is 35.

Adding to 23730431057 its reverse (75013403732), we get a palindrome (98743834789).

The spelling of 23730431057 in words is "twenty-three billion, seven hundred thirty million, four hundred thirty-one thousand, fifty-seven".