10111110998987 has 2 divisors, whose sum is σ = 10111110998988. Its totient is φ = 10111110998986.

The previous prime is 10111110998969. The next prime is 10111110999053. The reversal of 10111110998987 is 78989901111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10111110998987 - 2²² = 10111106804683 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111110298987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055555499493 + 5055555499494.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555499494).

Almost surely, 2^{10111110998987} is an apocalyptic number.

10111110998987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111110998987 is an equidigital number, since it uses as much as digits as its factorization.

10111110998987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 56.

The spelling of 10111110998987 in words is "ten trillion, one hundred eleven billion, one hundred ten million, nine hundred ninety-eight thousand, nine hundred eighty-seven".