1320513314403 has 12 divisors (see below), whose sum is σ = 1777293245000. Its totient is φ = 872114689632.

The previous prime is 1320513314399. The next prime is 1320513314423. The reversal of 1320513314403 is 3044133150231.

It is a happy number.

It is not a de Polignac number, because 1320513314403 - 2² = 1320513314399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320513314423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19188778 + ... + 19257471.

Almost surely, 2^{1320513314403} is an apocalyptic number.

1320513314403 is a deficient number, since it is larger than the sum of its proper divisors (456779930597).

1320513314403 is an equidigital number, since it uses as much as digits as its factorization.

1320513314403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38446466 (or 38446359 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1320513314403 its reverse (3044133150231), we get a palindrome (4364646464634).

The spelling of 1320513314403 in words is "one trillion, three hundred twenty billion, five hundred thirteen million, three hundred fourteen thousand, four hundred three".