22343431321 has 8 divisors (see below), whose sum is σ = 23151619080. Its totient is φ = 21537758592.

The previous prime is 22343431303. The next prime is 22343431333. The reversal of 22343431321 is 12313434322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2309859721 + 20033571600 = 48061^2 + 141540^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22343431321 - 2²⁵ = 22309876889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22343431321.

It is not an unprimeable number, because it can be changed into a prime (22343441321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610660 + ... + 646213.

It is an arithmetic number, because the mean of its divisors is an integer number (2893952385).

Almost surely, 2^22343431321 is an apocalyptic number.

It is an amenable number.

22343431321 is a deficient number, since it is larger than the sum of its proper divisors (808187759).

22343431321 is a wasteful number, since it uses less digits than its factorization.

22343431321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257515.

The product of its digits is 10368, while the sum is 28.

Adding to 22343431321 its reverse (12313434322), we get a palindrome (34656865643).

The spelling of 22343431321 in words is "twenty-two billion, three hundred forty-three million, four hundred thirty-one thousand, three hundred twenty-one".