313321311003 has 4 divisors (see below), whose sum is σ = 417761748008. Its totient is φ = 208880874000.

The previous prime is 313321310993. The next prime is 313321311007. The reversal of 313321311003 is 300113123313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313321311003 - 2⁵ = 313321310971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313321311007) 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, 52220218498 + ... + 52220218503.

It is an arithmetic number, because the mean of its divisors is an integer number (104440437002).

Almost surely, 2^313321311003 is an apocalyptic number.

313321311003 is a deficient number, since it is larger than the sum of its proper divisors (104440437005).

313321311003 is a wasteful number, since it uses less digits than its factorization.

313321311003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104440437004.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 313321311003 its reverse (300113123313), we get a palindrome (613434434316).

The spelling of 313321311003 in words is "three hundred thirteen billion, three hundred twenty-one million, three hundred eleven thousand, three".