22431205342 has 64 divisors (see below), whose sum is σ = 42127142400. Its totient is φ = 8721820800.

The previous prime is 22431205333. The next prime is 22431205361. The reversal of 22431205342 is 24350213422.

It is a self number, because there is not a number n which added to its sum of digits gives 22431205342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2550709 + ... + 2559487.

It is an arithmetic number, because the mean of its divisors is an integer number (658236600).

Almost surely, 2^22431205342 is an apocalyptic number.

22431205342 is a deficient number, since it is larger than the sum of its proper divisors (19695937058).

22431205342 is a wasteful number, since it uses less digits than its factorization.

22431205342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041.

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

Adding to 22431205342 its reverse (24350213422), we get a palindrome (46781418764).

The spelling of 22431205342 in words is "twenty-two billion, four hundred thirty-one million, two hundred five thousand, three hundred forty-two".