13121611553627 has 2 divisors, whose sum is σ = 13121611553628. Its totient is φ = 13121611553626.

The previous prime is 13121611553597. The next prime is 13121611553641. The reversal of 13121611553627 is 72635511612131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13121611553627 - 2⁶ = 13121611553563 is a prime.

It is not a weakly prime, because it can be changed into another prime (13121611553327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560805776813 + 6560805776814.

It is an arithmetic number, because the mean of its divisors is an integer number (6560805776814).

Almost surely, 2^{13121611553627} is an apocalyptic number.

13121611553627 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121611553627 is an equidigital number, since it uses as much as digits as its factorization.

13121611553627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The spelling of 13121611553627 in words is "thirteen trillion, one hundred twenty-one billion, six hundred eleven million, five hundred fifty-three thousand, six hundred twenty-seven".