22431321324 has 36 divisors (see below), whose sum is σ = 56718731160. Its totient is φ = 7474821120.

The previous prime is 22431321271. The next prime is 22431321337. The reversal of 22431321324 is 42312313422.

22431321324 is a `hidden beast` number, since 2 + 2 + 4 + 313 + 21 + 324 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22431321324² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26259 + ... + 213429.

It is an arithmetic number, because the mean of its divisors is an integer number (1575520310).

Almost surely, 2^22431321324 is an apocalyptic number.

It is an amenable number.

22431321324 is an abundant number, since it is smaller than the sum of its proper divisors (34287409836).

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

22431321324 is a wasteful number, since it uses less digits than its factorization.

22431321324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190510 (or 190505 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 22431321324 its reverse (42312313422), we get a palindrome (64743634746).

The spelling of 22431321324 in words is "twenty-two billion, four hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-four".