12021231310013 has 2 divisors, whose sum is σ = 12021231310014. Its totient is φ = 12021231310012.

The previous prime is 12021231309883. The next prime is 12021231310021. The reversal of 12021231310013 is 31001313212021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10623414572164 + 1397816737849 = 3259358^2 + 1182293^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021231310013 - 2¹⁸ = 12021231047869 is a prime.

It is a super-2 number, since 2×12021231310013² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12621231310013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010615655006 + 6010615655007.

It is an arithmetic number, because the mean of its divisors is an integer number (6010615655007).

Almost surely, 2^{12021231310013} is an apocalyptic number.

It is an amenable number.

12021231310013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021231310013 is an equidigital number, since it uses as much as digits as its factorization.

12021231310013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12021231310013 its reverse (31001313212021), we get a palindrome (43022544522034).

The spelling of 12021231310013 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred ten thousand, thirteen".