13223313012 has 96 divisors (see below), whose sum is σ = 37996478464. Its totient is φ = 3485462400.

The previous prime is 13223312987. The next prime is 13223313029. The reversal of 13223313012 is 21031332231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13223313012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3701187 + ... + 3704757.

Almost surely, 2^13223313012 is an apocalyptic number.

13223313012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13223313012 is an abundant number, since it is smaller than the sum of its proper divisors (24773165452).

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

13223313012 is a wasteful number, since it uses less digits than its factorization.

13223313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13223313012 its reverse (21031332231), we get a palindrome (34254645243).

The spelling of 13223313012 in words is "thirteen billion, two hundred twenty-three million, three hundred thirteen thousand, twelve".