13313002321 has 8 divisors (see below), whose sum is σ = 13331825000. Its totient is φ = 13294195200.

The previous prime is 13313002303. The next prime is 13313002331. The reversal of 13313002321 is 12320031331.

It can be written as a sum of positive squares in 4 ways, for example, as 102718225 + 13210284096 = 10135^2 + 114936^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13313002321 - 2⁹ = 13313001809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13313002331) 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, 4031371 + ... + 4034671.

It is an arithmetic number, because the mean of its divisors is an integer number (1666478125).

Almost surely, 2^13313002321 is an apocalyptic number.

It is an amenable number.

13313002321 is a deficient number, since it is larger than the sum of its proper divisors (18822679).

13313002321 is a wasteful number, since it uses less digits than its factorization.

13313002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13313002321 its reverse (12320031331), we get a palindrome (25633033652).

The spelling of 13313002321 in words is "thirteen billion, three hundred thirteen million, two thousand, three hundred twenty-one".