13321212136591 has 2 divisors, whose sum is σ = 13321212136592. Its totient is φ = 13321212136590.

The previous prime is 13321212136553. The next prime is 13321212136621. The reversal of 13321212136591 is 19563121212331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13321212136591 is a prime.

It is a super-2 number, since 2×13321212136591² (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 (13321212139591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660606068295 + 6660606068296.

It is an arithmetic number, because the mean of its divisors is an integer number (6660606068296).

Almost surely, 2^{13321212136591} is an apocalyptic number.

13321212136591 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321212136591 is an equidigital number, since it uses as much as digits as its factorization.

13321212136591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The spelling of 13321212136591 in words is "thirteen trillion, three hundred twenty-one billion, two hundred twelve million, one hundred thirty-six thousand, five hundred ninety-one".