13320012 has 24 divisors (see below), whose sum is σ = 31290112. Its totient is φ = 4410000.

The previous prime is 13320011. The next prime is 13320029. The reversal of 13320012 is 21002331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13320012.

It is not an unprimeable number, because it can be changed into a prime (13320011) 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, 1864 + ... + 5487.

Almost surely, 2^13320012 is an apocalyptic number.

13320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13320012 is an abundant number, since it is smaller than the sum of its proper divisors (17970100).

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

13320012 is a wasteful number, since it uses less digits than its factorization.

13320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509 (or 7507 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13320012 is about 3649.6591621684. The cubic root of 13320012 is about 237.0472230492.

Adding to 13320012 its reverse (21002331), we get a palindrome (34322343).

The spelling of 13320012 in words is "thirteen million, three hundred twenty thousand, twelve".