22543242342 has 32 divisors (see below), whose sum is σ = 45679956480. Its totient is φ = 7415597280.

The previous prime is 22543242317. The next prime is 22543242389. The reversal of 22543242342 is 24324234522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038217 + ... + 1059707.

It is an arithmetic number, because the mean of its divisors is an integer number (1427498640).

Almost surely, 2^22543242342 is an apocalyptic number.

22543242342 is an abundant number, since it is smaller than the sum of its proper divisors (23136714138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22543242342 is a wasteful number, since it uses less digits than its factorization.

22543242342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23788.

The product of its digits is 92160, while the sum is 33.

Adding to 22543242342 its reverse (24324234522), we get a palindrome (46867476864).

The spelling of 22543242342 in words is "twenty-two billion, five hundred forty-three million, two hundred forty-two thousand, three hundred forty-two".