31310102222 has 12 divisors (see below), whose sum is σ = 54632933640. Its totient is φ = 13418615196.

The previous prime is 31310102221. The next prime is 31310102227. The reversal of 31310102222 is 22220101313.

It is a self number, because there is not a number n which added to its sum of digits gives 31310102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310102221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159745322 + ... + 159745517.

It is an arithmetic number, because the mean of its divisors is an integer number (4552744470).

Almost surely, 2^31310102222 is an apocalyptic number.

31310102222 is a deficient number, since it is larger than the sum of its proper divisors (23322831418).

31310102222 is a wasteful number, since it uses less digits than its factorization.

31310102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319490855 (or 319490848 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31310102222 its reverse (22220101313), we get a palindrome (53530203535).

Subtracting from 31310102222 its reverse (22220101313), we obtain a palindrome (9090000909).

The spelling of 31310102222 in words is "thirty-one billion, three hundred ten million, one hundred two thousand, two hundred twenty-two".