13516230263209 has 2 divisors, whose sum is σ = 13516230263210. Its totient is φ = 13516230263208.

The previous prime is 13516230263113. The next prime is 13516230263213. The reversal of 13516230263209 is 90236203261531.

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., 12433804345600 + 1082425917609 = 3526160^2 + 1040397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13516230263209 is a prime.

It is not a weakly prime, because it can be changed into another prime (13516230263909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6758115131604 + 6758115131605.

It is an arithmetic number, because the mean of its divisors is an integer number (6758115131605).

Almost surely, 2^{13516230263209} is an apocalyptic number.

It is an amenable number.

13516230263209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13516230263209 is an equidigital number, since it uses as much as digits as its factorization.

13516230263209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 13516230263209 in words is "thirteen trillion, five hundred sixteen billion, two hundred thirty million, two hundred sixty-three thousand, two hundred nine".