31112230122 has 12 divisors (see below), whose sum is σ = 67409831970. Its totient is φ = 10370743368.

The previous prime is 31112230117. The next prime is 31112230133. The reversal of 31112230122 is 22103221113.

31112230122 is a `hidden beast` number, since 311 + 1 + 2 + 230 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30283308441 + 828921681 = 174021^2 + 28791^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1728457229 = 31112230122 / (3 + 1 + 1 + 1 + 2 + 2 + 3 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 31112230095 and 31112230104.

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 5 ways as a sum of consecutive naturals, for example, 864228597 + ... + 864228632.

Almost surely, 2^31112230122 is an apocalyptic number.

31112230122 is an abundant number, since it is smaller than the sum of its proper divisors (36297601848).

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

31112230122 is a wasteful number, since it uses less digits than its factorization.

31112230122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728457237 (or 1728457234 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31112230122 its reverse (22103221113), we get a palindrome (53215451235).

Subtracting from 31112230122 its reverse (22103221113), we obtain a palindrome (9009009009).

The spelling of 31112230122 in words is "thirty-one billion, one hundred twelve million, two hundred thirty thousand, one hundred twenty-two".