311222222113 has 16 divisors (see below), whose sum is σ = 340901303040. Its totient is φ = 281774592000.

The previous prime is 311222222099. The next prime is 311222222117.

311222222113 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-311222222113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311222222117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27984568 + ... + 27995686.

It is an arithmetic number, because the mean of its divisors is an integer number (21306331440).

Almost surely, 2^311222222113 is an apocalyptic number.

It is an amenable number.

311222222113 is a deficient number, since it is larger than the sum of its proper divisors (29679080927).

311222222113 is a wasteful number, since it uses less digits than its factorization.

311222222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21288.

The product of its digits is 576, while the sum is 22.

Multiplying 311222222113 by its sum of digits (22), we get a palindrome (6846888886486).

It can be divided in two parts, 311222 and 222113, that added together give a palindrome (533335).

The spelling of 311222222113 in words is "three hundred eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred thirteen".