311232100312120 has 32 divisors (see below), whose sum is σ = 754139319988320. Its totient is φ = 114916467807360.

The previous prime is 311232100312093. The next prime is 311232100312139. The reversal of 311232100312120 is 21213001232113.

It is a junction number, because it is equal to n+sod(n) for n = 311232100312091 and 311232100312100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299261634396 + ... + 299261635435.

It is an arithmetic number, because the mean of its divisors is an integer number (23566853749635).

Almost surely, 2^{311232100312120} is an apocalyptic number.

It is an amenable number.

311232100312120 is an abundant number, since it is smaller than the sum of its proper divisors (442907219676200).

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

311232100312120 is a wasteful number, since it uses less digits than its factorization.

311232100312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598523269855 (or 598523269851 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 311232100312120 its reverse (21213001232113), we get a palindrome (332445101544233).

The spelling of 311232100312120 in words is "three hundred eleven trillion, two hundred thirty-two billion, one hundred million, three hundred twelve thousand, one hundred twenty".