13223403344 has 40 divisors (see below), whose sum is σ = 26646023712. Its totient is φ = 6352053120.

The previous prime is 13223403331. The next prime is 13223403359. The reversal of 13223403344 is 44330432231.

It is a super-2 number, since 2×13223403344² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115574 + ... + 199509.

Almost surely, 2^13223403344 is an apocalyptic number.

It is an amenable number.

13223403344 is an abundant number, since it is smaller than the sum of its proper divisors (13422620368).

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

13223403344 is a wasteful number, since it uses less digits than its factorization.

13223403344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315195 (or 315189 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 13223403344 its reverse (44330432231), we get a palindrome (57553835575).

The spelling of 13223403344 in words is "thirteen billion, two hundred twenty-three million, four hundred three thousand, three hundred forty-four".