10111018987 has 2 divisors, whose sum is σ = 10111018988. Its totient is φ = 10111018986.

The previous prime is 10111018969. The next prime is 10111018997. The reversal of 10111018987 is 78981011101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10111018987 - 2¹⁵ = 10110986219 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111018927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055509493 + 5055509494.

It is an arithmetic number, because the mean of its divisors is an integer number (5055509494).

Almost surely, 2^10111018987 is an apocalyptic number.

10111018987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111018987 is an equidigital number, since it uses as much as digits as its factorization.

10111018987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 37.

The spelling of 10111018987 in words is "ten billion, one hundred eleven million, eighteen thousand, nine hundred eighty-seven".