31301220110212 has 48 divisors (see below), whose sum is σ = 60829756412544. Its totient is φ = 14001017760000.

The previous prime is 31301220110047. The next prime is 31301220110221. The reversal of 31301220110212 is 21201102210313.

It is a self number, because there is not a number n which added to its sum of digits gives 31301220110212.

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 15 ways as a sum of consecutive naturals, for example, 48292714 + ... + 48936577.

It is an arithmetic number, because the mean of its divisors is an integer number (1267286591928).

Almost surely, 2^{31301220110212} is an apocalyptic number.

It is an amenable number.

31301220110212 is a deficient number, since it is larger than the sum of its proper divisors (29528536302332).

31301220110212 is a wasteful number, since it uses less digits than its factorization.

31301220110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97229500 (or 97229498 counting only the distinct ones).

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

Adding to 31301220110212 its reverse (21201102210313), we get a palindrome (52502322320525).

The spelling of 31301220110212 in words is "thirty-one trillion, three hundred one billion, two hundred twenty million, one hundred ten thousand, two hundred twelve".