311013312213 has 4 divisors (see below), whose sum is σ = 414684416288. Its totient is φ = 207342208140.

The previous prime is 311013312199. The next prime is 311013312251. The reversal of 311013312213 is 312213310113.

It is a happy number.

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 not a de Polignac number, because 311013312213 - 2⁶ = 311013312149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311013312213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311013312293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51835552033 + ... + 51835552038.

It is an arithmetic number, because the mean of its divisors is an integer number (103671104072).

Almost surely, 2^311013312213 is an apocalyptic number.

It is an amenable number.

311013312213 is a deficient number, since it is larger than the sum of its proper divisors (103671104075).

311013312213 is a wasteful number, since it uses less digits than its factorization.

311013312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103671104074.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311013312213 its reverse (312213310113), we get a palindrome (623226622326).

The spelling of 311013312213 in words is "three hundred eleven billion, thirteen million, three hundred twelve thousand, two hundred thirteen".