22540432123 has 6 divisors (see below), whose sum is σ = 24775847012. Its totient is φ = 20491301820.

The previous prime is 22540432087. The next prime is 22540432177. The reversal of 22540432123 is 32123404522.

It is not a de Polignac number, because 22540432123 - 2²⁵ = 22506877691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22540432091 and 22540432100.

It is not an unprimeable number, because it can be changed into a prime (22540432183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93142161 + ... + 93142402.

Almost surely, 2^22540432123 is an apocalyptic number.

22540432123 is a deficient number, since it is larger than the sum of its proper divisors (2235414889).

22540432123 is a wasteful number, since it uses less digits than its factorization.

22540432123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186284585 (or 186284574 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 22540432123 its reverse (32123404522), we get a palindrome (54663836645).

The spelling of 22540432123 in words is "twenty-two billion, five hundred forty million, four hundred thirty-two thousand, one hundred twenty-three".