22023402123 has 4 divisors (see below), whose sum is σ = 29364536168. Its totient is φ = 14682268080.

The previous prime is 22023402017. The next prime is 22023402127. The reversal of 22023402123 is 32120432022.

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

It is not a de Polignac number, because 22023402123 - 2²⁰ = 22022353547 is a prime.

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 22023402123.

It is not an unprimeable number, because it can be changed into a prime (22023402127) 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, 3670567018 + ... + 3670567023.

It is an arithmetic number, because the mean of its divisors is an integer number (7341134042).

Almost surely, 2^22023402123 is an apocalyptic number.

22023402123 is a deficient number, since it is larger than the sum of its proper divisors (7341134045).

22023402123 is an equidigital number, since it uses as much as digits as its factorization.

22023402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341134044.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22023402123 its reverse (32120432022), we get a palindrome (54143834145).

The spelling of 22023402123 in words is "twenty-two billion, twenty-three million, four hundred two thousand, one hundred twenty-three".