31133313022 has 32 divisors (see below), whose sum is σ = 55224990720. Its totient is φ = 12879669600.

The previous prime is 31133313011. The next prime is 31133313023. The reversal of 31133313022 is 22031333113.

It is a junction number, because it is equal to n+sod(n) for n = 31133312984 and 31133313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133313023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2613163 + ... + 2625049.

It is an arithmetic number, because the mean of its divisors is an integer number (1725780960).

Almost surely, 2^31133313022 is an apocalyptic number.

31133313022 is a deficient number, since it is larger than the sum of its proper divisors (24091677698).

31133313022 is a wasteful number, since it uses less digits than its factorization.

31133313022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18376.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31133313022 its reverse (22031333113), we get a palindrome (53164646135).

The spelling of 31133313022 in words is "thirty-one billion, one hundred thirty-three million, three hundred thirteen thousand, twenty-two".