1110000019987 has 2 divisors, whose sum is σ = 1110000019988. Its totient is φ = 1110000019986.

The previous prime is 1110000019927. The next prime is 1110000020021. The reversal of 1110000019987 is 7899100000111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110000019987 is a prime.

It is a super-2 number, since 2×1110000019987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1110000019927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555000009993 + 555000009994.

It is an arithmetic number, because the mean of its divisors is an integer number (555000009994).

Almost surely, 2^{1110000019987} is an apocalyptic number.

1110000019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110000019987 is an equidigital number, since it uses as much as digits as its factorization.

1110000019987 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 37.

The spelling of 1110000019987 in words is "one trillion, one hundred ten billion, nineteen thousand, nine hundred eighty-seven".