20000110987 has 2 divisors, whose sum is σ = 20000110988. Its totient is φ = 20000110986.

The previous prime is 20000110981. The next prime is 20000111039. The reversal of 20000110987 is 78901100002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000110987 - 2⁷ = 20000110859 is a prime.

It is a super-2 number, since 2×20000110987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20000110981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000055493 + 10000055494.

It is an arithmetic number, because the mean of its divisors is an integer number (10000055494).

Almost surely, 2^20000110987 is an apocalyptic number.

20000110987 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000110987 is an equidigital number, since it uses as much as digits as its factorization.

20000110987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 20000110987 its reverse (78901100002), we get a palindrome (98901210989).

The spelling of 20000110987 in words is "twenty billion, one hundred ten thousand, nine hundred eighty-seven".