311431010111222 has 8 divisors (see below), whose sum is σ = 468648593994672. Its totient is φ = 155214812113000.

The previous prime is 311431010111219. The next prime is 311431010111261. The reversal of 311431010111222 is 222111010134113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250346470529 + ... + 250346471772.

It is an arithmetic number, because the mean of its divisors is an integer number (58581074249334).

Almost surely, 2^{311431010111222} is an apocalyptic number.

311431010111222 is a deficient number, since it is larger than the sum of its proper divisors (157217583883450).

311431010111222 is a wasteful number, since it uses less digits than its factorization.

311431010111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500692942614.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 311431010111222 its reverse (222111010134113), we get a palindrome (533542020245335).

The spelling of 311431010111222 in words is "three hundred eleven trillion, four hundred thirty-one billion, ten million, one hundred eleven thousand, two hundred twenty-two".