31102223120012 has 48 divisors (see below), whose sum is σ = 60397520279040. Its totient is φ = 13894498699200.

The previous prime is 31102223120011. The next prime is 31102223120047. The reversal of 31102223120012 is 21002132220113.

It is not an unprimeable number, because it can be changed into a prime (31102223120011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9684938 + ... + 12490094.

It is an arithmetic number, because the mean of its divisors is an integer number (1258281672480).

Almost surely, 2^{31102223120012} is an apocalyptic number.

It is an amenable number.

31102223120012 is a deficient number, since it is larger than the sum of its proper divisors (29295297159028).

31102223120012 is a wasteful number, since it uses less digits than its factorization.

31102223120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809502 (or 2809500 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31102223120012 its reverse (21002132220113), we get a palindrome (52104355340125).

The spelling of 31102223120012 in words is "thirty-one trillion, one hundred two billion, two hundred twenty-three million, one hundred twenty thousand, twelve".