31112232100012 has 24 divisors (see below), whose sum is σ = 62224583936256. Its totient is φ = 13333788099408.

The previous prime is 31112232099967. The next prime is 31112232100069. The reversal of 31112232100012 is 21000123221113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24319953 + ... + 25567255.

It is an arithmetic number, because the mean of its divisors is an integer number (2592690997344).

Almost surely, 2^{31112232100012} is an apocalyptic number.

It is an amenable number.

31112232100012 is an abundant number, since it is smaller than the sum of its proper divisors (31112351836244).

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

31112232100012 is a wasteful number, since it uses less digits than its factorization.

31112232100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138157 (or 2138155 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31112232100012 its reverse (21000123221113), we get a palindrome (52112355321125).

The spelling of 31112232100012 in words is "thirty-one trillion, one hundred twelve billion, two hundred thirty-two million, one hundred thousand, twelve".