21313233323324 has 6 divisors (see below), whose sum is σ = 37298158315824. Its totient is φ = 10656616661660.

The previous prime is 21313233323303. The next prime is 21313233323359. The reversal of 21313233323324 is 42332333231312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2664154165412 + ... + 2664154165419.

It is an arithmetic number, because the mean of its divisors is an integer number (6216359719304).

Almost surely, 2^{21313233323324} is an apocalyptic number.

It is an amenable number.

21313233323324 is a deficient number, since it is larger than the sum of its proper divisors (15984924992500).

21313233323324 is a wasteful number, since it uses less digits than its factorization.

21313233323324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328308330835 (or 5328308330833 counting only the distinct ones).

The product of its digits is 139968, while the sum is 35.

Adding to 21313233323324 its reverse (42332333231312), we get a palindrome (63645566554636).

The spelling of 21313233323324 in words is "twenty-one trillion, three hundred thirteen billion, two hundred thirty-three million, three hundred twenty-three thousand, three hundred twenty-four".