13181185063 has 2 divisors, whose sum is σ = 13181185064. Its totient is φ = 13181185062.

The previous prime is 13181185057. The next prime is 13181185081. The reversal of 13181185063 is 36058118131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13181185063 - 2⁹ = 13181184551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13181185013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590592531 + 6590592532.

It is an arithmetic number, because the mean of its divisors is an integer number (6590592532).

Almost surely, 2^13181185063 is an apocalyptic number.

13181185063 is a deficient number, since it is larger than the sum of its proper divisors (1).

13181185063 is an equidigital number, since it uses as much as digits as its factorization.

13181185063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 13181185063 in words is "thirteen billion, one hundred eighty-one million, one hundred eighty-five thousand, sixty-three".