31112302122 has 32 divisors (see below), whose sum is σ = 75423764160. Its totient is φ = 9427970160.

The previous prime is 31112302093. The next prime is 31112302127. The reversal of 31112302122 is 22120321113.

31112302122 is a `hidden beast` number, since 311 + 1 + 230 + 2 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31112302095 and 31112302104.

It is not an unprimeable number, because it can be changed into a prime (31112302127) 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, 26188213 + ... + 26189400.

It is an arithmetic number, because the mean of its divisors is an integer number (2356992630).

Almost surely, 2^31112302122 is an apocalyptic number.

31112302122 is an abundant number, since it is smaller than the sum of its proper divisors (44311462038).

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

31112302122 is a wasteful number, since it uses less digits than its factorization.

31112302122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52377635 (or 52377629 counting only the distinct ones).

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

Adding to 31112302122 its reverse (22120321113), we get a palindrome (53232623235).

The spelling of 31112302122 in words is "thirty-one billion, one hundred twelve million, three hundred two thousand, one hundred twenty-two".