12313213122 has 32 divisors (see below), whose sum is σ = 28402704000. Its totient is φ = 3485783808.

The previous prime is 12313213097. The next prime is 12313213123. The reversal of 12313213122 is 22131231321.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is not an unprimeable number, because it can be changed into a prime (12313213123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1340247 + ... + 1349402.

It is an arithmetic number, because the mean of its divisors is an integer number (887584500).

Almost surely, 2^12313213122 is an apocalyptic number.

12313213122 is an abundant number, since it is smaller than the sum of its proper divisors (16089490878).

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

12313213122 is a wasteful number, since it uses less digits than its factorization.

12313213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689770.

The product of its digits is 432, while the sum is 21.

Adding to 12313213122 its reverse (22131231321), we get a palindrome (34444444443).

The spelling of 12313213122 in words is "twelve billion, three hundred thirteen million, two hundred thirteen thousand, one hundred twenty-two".