311222013302111 has 4 divisors (see below), whose sum is σ = 327602119265400. Its totient is φ = 294841907338824.

The previous prime is 311222013302107. The next prime is 311222013302129. The reversal of 311222013302111 is 111203310222113.

It is a happy number.

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

It is not a de Polignac number, because 311222013302111 - 2² = 311222013302107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311222013302141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8190052981616 + ... + 8190052981653.

It is an arithmetic number, because the mean of its divisors is an integer number (81900529816350).

Almost surely, 2^{311222013302111} is an apocalyptic number.

311222013302111 is a deficient number, since it is larger than the sum of its proper divisors (16380105963289).

311222013302111 is a wasteful number, since it uses less digits than its factorization.

311222013302111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16380105963288.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311222013302111 its reverse (111203310222113), we get a palindrome (422425323524224).

The spelling of 311222013302111 in words is "three hundred eleven trillion, two hundred twenty-two billion, thirteen million, three hundred two thousand, one hundred eleven".