3111101031012 has 96 divisors (see below), whose sum is σ = 7847718480000. Its totient is φ = 953582794752.

The previous prime is 3111101030993. The next prime is 3111101031043. The reversal of 3111101031012 is 2101301011113.

It is a junction number, because it is equal to n+sod(n) for n = 3111101030982 and 3111101031000.

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, 74107564 + ... + 74149532.

It is an arithmetic number, because the mean of its divisors is an integer number (81747067500).

Almost surely, 2^{3111101031012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111101031012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3923859240000).

3111101031012 is an abundant number, since it is smaller than the sum of its proper divisors (4736617448988).

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

3111101031012 is a wasteful number, since it uses less digits than its factorization.

3111101031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43805 (or 43803 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 3111101031012 its reverse (2101301011113), we get a palindrome (5212402042125).

The spelling of 3111101031012 in words is "three trillion, one hundred eleven billion, one hundred one million, thirty-one thousand, twelve".