31102311022 has 16 divisors (see below), whose sum is σ = 49325264640. Its totient is φ = 14667767928.

The previous prime is 31102311013. The next prime is 31102311047. The reversal of 31102311022 is 22011320113.

It is a junction number, because it is equal to n+sod(n) for n = 31102310987 and 31102311005.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1794198 + ... + 1811449.

It is an arithmetic number, because the mean of its divisors is an integer number (3082829040).

Almost surely, 2^31102311022 is an apocalyptic number.

31102311022 is a deficient number, since it is larger than the sum of its proper divisors (18222953618).

31102311022 is a wasteful number, since it uses less digits than its factorization.

31102311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605895.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31102311022 its reverse (22011320113), we get a palindrome (53113631135).

Subtracting from 31102311022 its reverse (22011320113), we obtain a palindrome (9090990909).

It can be divided in two parts, 3110 and 2311022, that added together give a palindrome (2314132).

The spelling of 31102311022 in words is "thirty-one billion, one hundred two million, three hundred eleven thousand, twenty-two".