13111956093547 has 2 divisors, whose sum is σ = 13111956093548. Its totient is φ = 13111956093546.

The previous prime is 13111956093517. The next prime is 13111956093637. The reversal of 13111956093547 is 74539065911131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111956093547 is a prime.

It is not a weakly prime, because it can be changed into another prime (13111956093517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555978046773 + 6555978046774.

It is an arithmetic number, because the mean of its divisors is an integer number (6555978046774).

Almost surely, 2^{13111956093547} is an apocalyptic number.

13111956093547 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111956093547 is an equidigital number, since it uses as much as digits as its factorization.

13111956093547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3061800, while the sum is 55.

The spelling of 13111956093547 in words is "thirteen trillion, one hundred eleven billion, nine hundred fifty-six million, ninety-three thousand, five hundred forty-seven".