23122355243 has 4 divisors (see below), whose sum is σ = 24900997968. Its totient is φ = 21343712520.

The previous prime is 23122355227. The next prime is 23122355297. The reversal of 23122355243 is 34255322132.

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

It is not a de Polignac number, because 23122355243 - 2⁴ = 23122355227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23122355743) 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, 889321343 + ... + 889321368.

It is an arithmetic number, because the mean of its divisors is an integer number (6225249492).

Almost surely, 2^23122355243 is an apocalyptic number.

23122355243 is a deficient number, since it is larger than the sum of its proper divisors (1778642725).

23122355243 is a wasteful number, since it uses less digits than its factorization.

23122355243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778642724.

The product of its digits is 43200, while the sum is 32.

Adding to 23122355243 its reverse (34255322132), we get a palindrome (57377677375).

The spelling of 23122355243 in words is "twenty-three billion, one hundred twenty-two million, three hundred fifty-five thousand, two hundred forty-three".