31323133122 has 16 divisors (see below), whose sum is σ = 62657304192. Its totient is φ = 10439204720.

The previous prime is 31323133117. The next prime is 31323133157. The reversal of 31323133122 is 22133132313.

It is a super-2 number, since 2×31323133122² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31323133092 and 31323133101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422793 + ... + 491324.

It is an arithmetic number, because the mean of its divisors is an integer number (3916081512).

Almost surely, 2^31323133122 is an apocalyptic number.

31323133122 is an abundant number, since it is smaller than the sum of its proper divisors (31334171070).

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

31323133122 is a wasteful number, since it uses less digits than its factorization.

31323133122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919833.

The product of its digits is 1944, while the sum is 24.

Adding to 31323133122 its reverse (22133132313), we get a palindrome (53456265435).

The spelling of 31323133122 in words is "thirty-one billion, three hundred twenty-three million, one hundred thirty-three thousand, one hundred twenty-two".