13112009212837 has 2 divisors, whose sum is σ = 13112009212838. Its totient is φ = 13112009212836.

The previous prime is 13112009212789. The next prime is 13112009212847. The reversal of 13112009212837 is 73821290021131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8954463744801 + 4157545468036 = 2992401^2 + 2039006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13112009212837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13112009212837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13112009212847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556004606418 + 6556004606419.

It is an arithmetic number, because the mean of its divisors is an integer number (6556004606419).

Almost surely, 2^{13112009212837} is an apocalyptic number.

It is an amenable number.

13112009212837 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112009212837 is an equidigital number, since it uses as much as digits as its factorization.

13112009212837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

Adding to 13112009212837 its reverse (73821290021131), we get a palindrome (86933299233968).

The spelling of 13112009212837 in words is "thirteen trillion, one hundred twelve billion, nine million, two hundred twelve thousand, eight hundred thirty-seven".