23030375557 has 16 divisors (see below), whose sum is σ = 27003900672. Its totient is φ = 19229201280.

The previous prime is 23030375531. The next prime is 23030375561. The reversal of 23030375557 is 75557303032.

It is a cyclic number.

It is not a de Polignac number, because 23030375557 - 2¹⁹ = 23029851269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030375567) 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, 125968 + ... + 248854.

It is an arithmetic number, because the mean of its divisors is an integer number (1687743792).

Almost surely, 2^23030375557 is an apocalyptic number.

It is an amenable number.

23030375557 is a deficient number, since it is larger than the sum of its proper divisors (3973525115).

23030375557 is a wasteful number, since it uses less digits than its factorization.

23030375557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123588.

The product of its (nonzero) digits is 330750, while the sum is 40.

Adding to 23030375557 its reverse (75557303032), we get a palindrome (98587678589).

The spelling of 23030375557 in words is "twenty-three billion, thirty million, three hundred seventy-five thousand, five hundred fifty-seven".