22502353123 has 4 divisors (see below), whose sum is σ = 22520844360. Its totient is φ = 22483861888.

The previous prime is 22502353109. The next prime is 22502353169. The reversal of 22502353123 is 32135320522.

It is a happy number.

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 22502353123 - 2²⁵ = 22468798691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22502353091 and 22502353100.

It is not an unprimeable number, because it can be changed into a prime (22502353103) 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, 9243793 + ... + 9246226.

It is an arithmetic number, because the mean of its divisors is an integer number (5630211090).

Almost surely, 2^22502353123 is an apocalyptic number.

22502353123 is a deficient number, since it is larger than the sum of its proper divisors (18491237).

22502353123 is a wasteful number, since it uses less digits than its factorization.

22502353123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18491236.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 22502353123 its reverse (32135320522), we get a palindrome (54637673645).

The spelling of 22502353123 in words is "twenty-two billion, five hundred two million, three hundred fifty-three thousand, one hundred twenty-three".