23114511521 has 4 divisors (see below), whose sum is σ = 23115364272. Its totient is φ = 23113658772.

The previous prime is 23114511473. The next prime is 23114511529. The reversal of 23114511521 is 12511541132.

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 23114511521 - 2¹⁸ = 23114249377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23114511529) 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, 384335 + ... + 440388.

It is an arithmetic number, because the mean of its divisors is an integer number (5778841068).

Almost surely, 2^23114511521 is an apocalyptic number.

It is an amenable number.

23114511521 is a deficient number, since it is larger than the sum of its proper divisors (852751).

23114511521 is an equidigital number, since it uses as much as digits as its factorization.

23114511521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852750.

The product of its digits is 1200, while the sum is 26.

The spelling of 23114511521 in words is "twenty-three billion, one hundred fourteen million, five hundred eleven thousand, five hundred twenty-one".