12642110213 has 2 divisors, whose sum is σ = 12642110214. Its totient is φ = 12642110212.

The previous prime is 12642110203. The next prime is 12642110233. The reversal of 12642110213 is 31201124621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12449650084 + 192460129 = 111578^2 + 13873^2 .

It is a cyclic number.

It is not a de Polignac number, because 12642110213 - 2⁸ = 12642109957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642110203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321055106 + 6321055107.

It is an arithmetic number, because the mean of its divisors is an integer number (6321055107).

Almost surely, 2^12642110213 is an apocalyptic number.

It is an amenable number.

12642110213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642110213 is an equidigital number, since it uses as much as digits as its factorization.

12642110213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12642110213 its reverse (31201124621), we get a palindrome (43843234834).

The spelling of 12642110213 in words is "twelve billion, six hundred forty-two million, one hundred ten thousand, two hundred thirteen".