12313022121 has 12 divisors (see below), whose sum is σ = 17842668480. Its totient is φ = 8182285080.

The previous prime is 12313022087. The next prime is 12313022129. The reversal of 12313022121 is 12122031321.

It is not a de Polignac number, because 12313022121 - 2⁷ = 12313021993 is a prime.

It is a super-2 number, since 2×12313022121² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12313022094 and 12313022103.

It is not an unprimeable number, because it can be changed into a prime (12313022129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2196741 + ... + 2202338.

It is an arithmetic number, because the mean of its divisors is an integer number (1486889040).

Almost surely, 2^12313022121 is an apocalyptic number.

It is an amenable number.

12313022121 is a deficient number, since it is larger than the sum of its proper divisors (5529646359).

12313022121 is a wasteful number, since it uses less digits than its factorization.

12313022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399396 (or 4399393 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12313022121 its reverse (12122031321), we get a palindrome (24435053442).

The spelling of 12313022121 in words is "twelve billion, three hundred thirteen million, twenty-two thousand, one hundred twenty-one".