31300220112 has 80 divisors (see below), whose sum is σ = 92793858432. Its totient is φ = 8905789440.

The previous prime is 31300220099. The next prime is 31300220113. The reversal of 31300220112 is 21102200313.

It is a junction number, because it is equal to n+sod(n) for n = 31300220091 and 31300220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300220113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112293 + ... + 274244.

Almost surely, 2^31300220112 is an apocalyptic number.

It is an amenable number.

31300220112 is an abundant number, since it is smaller than the sum of its proper divisors (61493638320).

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

31300220112 is a wasteful number, since it uses less digits than its factorization.

31300220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386796 (or 386790 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31300220112 its reverse (21102200313), we get a palindrome (52402420425).

The spelling of 31300220112 in words is "thirty-one billion, three hundred million, two hundred twenty thousand, one hundred twelve".