12313110222121 has 2 divisors, whose sum is σ = 12313110222122. Its totient is φ = 12313110222120.

The previous prime is 12313110222107. The next prime is 12313110222139. The reversal of 12313110222121 is 12122201131321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9089236106896 + 3223874115225 = 3014836^2 + 1795515^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313110222121 - 2⁵ = 12313110222089 is a prime.

It is a super-2 number, since 2×12313110222121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12313110222092 and 12313110222101.

It is not a weakly prime, because it can be changed into another prime (12313110222181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156555111060 + 6156555111061.

It is an arithmetic number, because the mean of its divisors is an integer number (6156555111061).

Almost surely, 2^{12313110222121} is an apocalyptic number.

It is an amenable number.

12313110222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313110222121 is an equidigital number, since it uses as much as digits as its factorization.

12313110222121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12313110222121 its reverse (12122201131321), we get a palindrome (24435311353442).

The spelling of 12313110222121 in words is "twelve trillion, three hundred thirteen billion, one hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".