311313213113 has 4 divisors (see below), whose sum is σ = 355786529280. Its totient is φ = 266839896948.

The previous prime is 311313213109. The next prime is 311313213149. The reversal of 311313213113 is 311312313113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311313213113 - 2² = 311313213109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311313273113) 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, 22236658073 + ... + 22236658086.

It is an arithmetic number, because the mean of its divisors is an integer number (88946632320).

Almost surely, 2^311313213113 is an apocalyptic number.

It is an amenable number.

311313213113 is a deficient number, since it is larger than the sum of its proper divisors (44473316167).

311313213113 is an equidigital number, since it uses as much as digits as its factorization.

311313213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44473316166.

The product of its digits is 486, while the sum is 23.

Adding to 311313213113 its reverse (311312313113), we get a palindrome (622625526226).

The spelling of 311313213113 in words is "three hundred eleven billion, three hundred thirteen million, two hundred thirteen thousand, one hundred thirteen".