23110550521 has 4 divisors (see below), whose sum is σ = 23157619344. Its totient is φ = 23063481700.

The previous prime is 23110550513. The next prime is 23110550537. The reversal of 23110550521 is 12505501132.

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 a cyclic number.

It is not a de Polignac number, because 23110550521 - 2³ = 23110550513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23110550591) 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, 23533675 + ... + 23534656.

It is an arithmetic number, because the mean of its divisors is an integer number (5789404836).

Almost surely, 2^23110550521 is an apocalyptic number.

It is an amenable number.

23110550521 is a deficient number, since it is larger than the sum of its proper divisors (47068823).

23110550521 is an equidigital number, since it uses as much as digits as its factorization.

23110550521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47068822.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 23110550521 in words is "twenty-three billion, one hundred ten million, five hundred fifty thousand, five hundred twenty-one".