12313011221121 has 32 divisors (see below), whose sum is σ = 18734558629248. Its totient is φ = 7126060907520.

The previous prime is 12313011221117. The next prime is 12313011221123. The reversal of 12313011221121 is 12112211031321.

It is not a de Polignac number, because 12313011221121 - 2² = 12313011221117 is a prime.

It is a super-2 number, since 2×12313011221121² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12313011221123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6238150 + ... + 7971231.

It is an arithmetic number, because the mean of its divisors is an integer number (585454957164).

Almost surely, 2^{12313011221121} is an apocalyptic number.

It is an amenable number.

12313011221121 is a deficient number, since it is larger than the sum of its proper divisors (6421547408127).

12313011221121 is a wasteful number, since it uses less digits than its factorization.

12313011221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14210721.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12313011221121 its reverse (12112211031321), we get a palindrome (24425222252442).

The spelling of 12313011221121 in words is "twelve trillion, three hundred thirteen billion, eleven million, two hundred twenty-one thousand, one hundred twenty-one".