31103012101112 has 32 divisors (see below), whose sum is σ = 66660762148320. Its totient is φ = 13327572228480.

The previous prime is 31103012101097. The next prime is 31103012101151. The reversal of 31103012101112 is 21110121030113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47381543 + ... + 48033494.

It is an arithmetic number, because the mean of its divisors is an integer number (2083148817135).

Almost surely, 2^{31103012101112} is an apocalyptic number.

It is an amenable number.

31103012101112 is an abundant number, since it is smaller than the sum of its proper divisors (35557750047208).

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

31103012101112 is a wasteful number, since it uses less digits than its factorization.

31103012101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95420871 (or 95420867 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 31103012101112 its reverse (21110121030113), we get a palindrome (52213133131225).

The spelling of 31103012101112 in words is "thirty-one trillion, one hundred three billion, twelve million, one hundred one thousand, one hundred twelve".