13320311403 has 8 divisors (see below), whose sum is σ = 20297617408. Its totient is φ = 7611606504.

The previous prime is 13320311383. The next prime is 13320311419. The reversal of 13320311403 is 30411302331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13320311403 - 2⁹ = 13320310891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 634300543 = 13320311403 / (1 + 3 + 3 + 2 + 0 + 3 + 1 + 1 + 4 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13320311403.

It is not an unprimeable number, because it can be changed into a prime (13320311003) 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, 317150251 + ... + 317150292.

It is an arithmetic number, because the mean of its divisors is an integer number (2537202176).

Almost surely, 2^13320311403 is an apocalyptic number.

13320311403 is a deficient number, since it is larger than the sum of its proper divisors (6977306005).

13320311403 is an equidigital number, since it uses as much as digits as its factorization.

13320311403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634300553.

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

Adding to 13320311403 its reverse (30411302331), we get a palindrome (43731613734).

The spelling of 13320311403 in words is "thirteen billion, three hundred twenty million, three hundred eleven thousand, four hundred three".