12313011221123 has 2 divisors, whose sum is σ = 12313011221124. Its totient is φ = 12313011221122.

The previous prime is 12313011221117. The next prime is 12313011221131. The reversal of 12313011221123 is 32112211031321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12313011221123 - 2¹⁸ = 12313010958979 is a prime.

It is a super-4 number, since 4×12313011221123⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (12313011221323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156505610561 + 6156505610562.

It is an arithmetic number, because the mean of its divisors is an integer number (6156505610562).

Almost surely, 2^{12313011221123} is an apocalyptic number.

12313011221123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313011221123 is an equidigital number, since it uses as much as digits as its factorization.

12313011221123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12313011221123 its reverse (32112211031321), we get a palindrome (44425222252444).

The spelling of 12313011221123 in words is "twelve trillion, three hundred thirteen billion, eleven million, two hundred twenty-one thousand, one hundred twenty-three".