31120331110112 has 24 divisors (see below), whose sum is σ = 61273527462000. Its totient is φ = 15558800326144.

The previous prime is 31120331110109. The next prime is 31120331110117. The reversal of 31120331110112 is 21101113302113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120331110117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42292937 + ... + 43022472.

It is an arithmetic number, because the mean of its divisors is an integer number (2553063644250).

Almost surely, 2^{31120331110112} is an apocalyptic number.

31120331110112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31120331110112 is a deficient number, since it is larger than the sum of its proper divisors (30153196351888).

31120331110112 is a wasteful number, since it uses less digits than its factorization.

31120331110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85326818 (or 85326810 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31120331110112 its reverse (21101113302113), we get a palindrome (52221444412225).

The spelling of 31120331110112 in words is "thirty-one trillion, one hundred twenty billion, three hundred thirty-one million, one hundred ten thousand, one hundred twelve".