31011112310012 has 24 divisors (see below), whose sum is σ = 55471190759712. Its totient is φ = 15164082065600.

The previous prime is 31011112309993. The next prime is 31011112310081. The reversal of 31011112310012 is 21001321111013.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 235109039 + ... + 235240902.

It is an arithmetic number, because the mean of its divisors is an integer number (2311299614988).

Almost surely, 2^{31011112310012} is an apocalyptic number.

It is an amenable number.

31011112310012 is a deficient number, since it is larger than the sum of its proper divisors (24460078449700).

31011112310012 is a wasteful number, since it uses less digits than its factorization.

31011112310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470350309 (or 470350307 counting only the distinct ones).

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

Adding to 31011112310012 its reverse (21001321111013), we get a palindrome (52012433421025).

The spelling of 31011112310012 in words is "thirty-one trillion, eleven billion, one hundred twelve million, three hundred ten thousand, twelve".