13212413105237 has 2 divisors, whose sum is σ = 13212413105238. Its totient is φ = 13212413105236.

The previous prime is 13212413105231. The next prime is 13212413105323. The reversal of 13212413105237 is 73250131421231.

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., 11881160972836 + 1331252132401 = 3446906^2 + 1153799^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212413105237 - 2¹⁰ = 13212413104213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212413105197 and 13212413105206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13212413105231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606206552618 + 6606206552619.

It is an arithmetic number, because the mean of its divisors is an integer number (6606206552619).

Almost surely, 2^{13212413105237} is an apocalyptic number.

It is an amenable number.

13212413105237 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212413105237 is an equidigital number, since it uses as much as digits as its factorization.

13212413105237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 13212413105237 its reverse (73250131421231), we get a palindrome (86462544526468).

The spelling of 13212413105237 in words is "thirteen trillion, two hundred twelve billion, four hundred thirteen million, one hundred five thousand, two hundred thirty-seven".