1013099987 has 2 divisors, whose sum is σ = 1013099988. Its totient is φ = 1013099986.

The previous prime is 1013099981. The next prime is 1013100013. The reversal of 1013099987 is 7899903101.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7899903101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1013099987 - 2²² = 1008905683 is a prime.

It is not a weakly prime, because it can be changed into another prime (1013099981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506549993 + 506549994.

It is an arithmetic number, because the mean of its divisors is an integer number (506549994).

Almost surely, 2^1013099987 is an apocalyptic number.

1013099987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013099987 is an equidigital number, since it uses as much as digits as its factorization.

1013099987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 1013099987 is about 31829.2316432552. The cubic root of 1013099987 is about 1004.3477321636.

The spelling of 1013099987 in words is "one billion, thirteen million, ninety-nine thousand, nine hundred eighty-seven".