13321110402 has 12 divisors (see below), whose sum is σ = 28862405910. Its totient is φ = 4440370128.

The previous prime is 13321110401. The next prime is 13321110421. The reversal of 13321110402 is 20401112331.

13321110402 is a `hidden beast` number, since 133 + 21 + 110 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10816208001 + 2504902401 = 104001^2 + 50049^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 740061689 = 13321110402 / (1 + 3 + 3 + 2 + 1 + 1 + 1 + 0 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (13321110401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370030827 + ... + 370030862.

Almost surely, 2^13321110402 is an apocalyptic number.

13321110402 is an abundant number, since it is smaller than the sum of its proper divisors (15541295508).

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

13321110402 is a wasteful number, since it uses less digits than its factorization.

13321110402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740061697 (or 740061694 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13321110402 its reverse (20401112331), we get a palindrome (33722222733).

The spelling of 13321110402 in words is "thirteen billion, three hundred twenty-one million, one hundred ten thousand, four hundred two".