13113001987 has 2 divisors, whose sum is σ = 13113001988. Its totient is φ = 13113001986.

The previous prime is 13113001907. The next prime is 13113002011. The reversal of 13113001987 is 78910031131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13113001987 - 2³¹ = 10965518339 is a prime.

It is a super-2 number, since 2×13113001987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13113001907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556500993 + 6556500994.

It is an arithmetic number, because the mean of its divisors is an integer number (6556500994).

Almost surely, 2^13113001987 is an apocalyptic number.

13113001987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113001987 is an equidigital number, since it uses as much as digits as its factorization.

13113001987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 13113001987 in words is "thirteen billion, one hundred thirteen million, one thousand, nine hundred eighty-seven".