22131023234 has 8 divisors (see below), whose sum is σ = 33199055868. Its totient is φ = 11064671280.

The previous prime is 22131023191. The next prime is 22131023297. The reversal of 22131023234 is 43232013122.

It can be written as a sum of positive squares in 2 ways, for example, as 21639292609 + 491730625 = 147103^2 + 22175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386717 + ... + 440240.

Almost surely, 2^22131023234 is an apocalyptic number.

22131023234 is a deficient number, since it is larger than the sum of its proper divisors (11068032634).

22131023234 is a wasteful number, since it uses less digits than its factorization.

22131023234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840340.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22131023234 its reverse (43232013122), we get a palindrome (65363036356).

The spelling of 22131023234 in words is "twenty-two billion, one hundred thirty-one million, twenty-three thousand, two hundred thirty-four".