13180501987 has 2 divisors, whose sum is σ = 13180501988. Its totient is φ = 13180501986.

The previous prime is 13180501949. The next prime is 13180502021. The reversal of 13180501987 is 78910508131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13180501987 is a prime.

It is not a weakly prime, because it can be changed into another prime (13180501907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590250993 + 6590250994.

It is an arithmetic number, because the mean of its divisors is an integer number (6590250994).

Almost surely, 2^13180501987 is an apocalyptic number.

13180501987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13180501987 is an equidigital number, since it uses as much as digits as its factorization.

13180501987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 13180501987 in words is "thirteen billion, one hundred eighty million, five hundred one thousand, nine hundred eighty-seven".