311112231221002 has 16 divisors (see below), whose sum is σ = 483794106924960. Its totient is φ = 149870501093488.

The previous prime is 311112231220913. The next prime is 311112231221039. The reversal of 311112231221002 is 200122132211113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5743017868 + ... + 5743072039.

It is an arithmetic number, because the mean of its divisors is an integer number (30237131682810).

Almost surely, 2^{311112231221002} is an apocalyptic number.

311112231221002 is a deficient number, since it is larger than the sum of its proper divisors (172681875703958).

311112231221002 is a wasteful number, since it uses less digits than its factorization.

311112231221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11486090405.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 311112231221002 its reverse (200122132211113), we get a palindrome (511234363432115).

The spelling of 311112231221002 in words is "three hundred eleven trillion, one hundred twelve billion, two hundred thirty-one million, two hundred twenty-one thousand, two".