23121575753 has 4 divisors (see below), whose sum is σ = 23196890640. Its totient is φ = 23046260868.

The previous prime is 23121575749. The next prime is 23121575759. The reversal of 23121575753 is 35757512132.

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 23121575753 - 2² = 23121575749 is a prime.

It is a super-3 number, since 3×23121575753³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23121575753.

It is not an unprimeable number, because it can be changed into a prime (23121575759) 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, 37656983 + ... + 37657596.

It is an arithmetic number, because the mean of its divisors is an integer number (5799222660).

Almost surely, 2^23121575753 is an apocalyptic number.

It is an amenable number.

23121575753 is a deficient number, since it is larger than the sum of its proper divisors (75314887).

23121575753 is an equidigital number, since it uses as much as digits as its factorization.

23121575753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75314886.

The product of its digits is 220500, while the sum is 41.

The spelling of 23121575753 in words is "twenty-three billion, one hundred twenty-one million, five hundred seventy-five thousand, seven hundred fifty-three".