311232020120022 has 64 divisors (see below), whose sum is σ = 626056171513344. Its totient is φ = 103147309578240.

The previous prime is 311232020119991. The next prime is 311232020120113. The reversal of 311232020120022 is 220021020232113.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1331738793 + ... + 1331972475.

It is an arithmetic number, because the mean of its divisors is an integer number (9782127679896).

Almost surely, 2^{311232020120022} is an apocalyptic number.

311232020120022 is an abundant number, since it is smaller than the sum of its proper divisors (314824151393322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311232020120022 is a wasteful number, since it uses less digits than its factorization.

311232020120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235813.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 311232020120022 its reverse (220021020232113), we get a palindrome (531253040352135).

The spelling of 311232020120022 in words is "three hundred eleven trillion, two hundred thirty-two billion, twenty million, one hundred twenty thousand, twenty-two".