1320013312 has 40 divisors (see below), whose sum is σ = 2698829496. Its totient is φ = 644646912.

The previous prime is 1320013301. The next prime is 1320013319. The reversal of 1320013312 is 2133100231.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320013319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7963 + ... + 51994.

Almost surely, 2^1320013312 is an apocalyptic number.

It is an amenable number.

1320013312 is an abundant number, since it is smaller than the sum of its proper divisors (1378816184).

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

1320013312 is an frugal number, since it uses more digits than its factorization.

1320013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60018 (or 60002 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320013312 is about 36331.9874490785. The cubic root of 1320013312 is about 1096.9649980370.

Adding to 1320013312 its reverse (2133100231), we get a palindrome (3453113543).

The spelling of 1320013312 in words is "one billion, three hundred twenty million, thirteen thousand, three hundred twelve".