313011331003 has 6 divisors (see below), whose sum is σ = 364115221836. Its totient is φ = 268295426532.

The previous prime is 313011330977. The next prime is 313011331007. The reversal of 313011331003 is 300133110313.

It is a happy number.

It is not a de Polignac number, because 313011331003 - 2⁵ = 313011330971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313011331007) 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, 3193993125 + ... + 3193993222.

It is an arithmetic number, because the mean of its divisors is an integer number (60685870306).

Almost surely, 2^313011331003 is an apocalyptic number.

313011331003 is a deficient number, since it is larger than the sum of its proper divisors (51103890833).

313011331003 is an equidigital number, since it uses as much as digits as its factorization.

313011331003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387986361 (or 6387986354 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 313011331003 its reverse (300133110313), we get a palindrome (613144441316).

The spelling of 313011331003 in words is "three hundred thirteen billion, eleven million, three hundred thirty-one thousand, three".