23102120243 has 4 divisors (see below), whose sum is σ = 23122157928. Its totient is φ = 23082082560.

The previous prime is 23102120203. The next prime is 23102120257. The reversal of 23102120243 is 34202120132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23102120243 - 2²⁶ = 23035011379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23102120203) 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, 10017113 + ... + 10019418.

It is an arithmetic number, because the mean of its divisors is an integer number (5780539482).

Almost surely, 2^23102120243 is an apocalyptic number.

23102120243 is a deficient number, since it is larger than the sum of its proper divisors (20037685).

23102120243 is a wasteful number, since it uses less digits than its factorization.

23102120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20037684.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23102120243 its reverse (34202120132), we get a palindrome (57304240375).

The spelling of 23102120243 in words is "twenty-three billion, one hundred two million, one hundred twenty thousand, two hundred forty-three".