311331101133112 has 8 divisors (see below), whose sum is σ = 583745814624600. Its totient is φ = 155665550566552.

The previous prime is 311331101133053. The next prime is 311331101133113. The reversal of 311331101133112 is 211331101133113.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311331101133113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19458193820812 + ... + 19458193820827.

It is an arithmetic number, because the mean of its divisors is an integer number (72968226828075).

Almost surely, 2^{311331101133112} is an apocalyptic number.

It is an amenable number.

311331101133112 is a deficient number, since it is larger than the sum of its proper divisors (272414713491488).

311331101133112 is a wasteful number, since it uses less digits than its factorization.

311331101133112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38916387641645 (or 38916387641641 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

Adding to 311331101133112 its reverse (211331101133113), we get a palindrome (522662202266225).

Subtracting from 311331101133112 its reverse (211331101133113), we obtain a palindrome (99999999999999).

The spelling of 311331101133112 in words is "three hundred eleven trillion, three hundred thirty-one billion, one hundred one million, one hundred thirty-three thousand, one hundred twelve".