100111111010987 has 2 divisors, whose sum is σ = 100111111010988. Its totient is φ = 100111111010986.

The previous prime is 100111111010951. The next prime is 100111111011013. The reversal of 100111111010987 is 789010111111001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100111111010987 - 2²⁴ = 100111094233771 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111111015987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055555505493 + 50055555505494.

It is an arithmetic number, because the mean of its divisors is an integer number (50055555505494).

Almost surely, 2^{100111111010987} is an apocalyptic number.

100111111010987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111111010987 is an equidigital number, since it uses as much as digits as its factorization.

100111111010987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 32.

Adding to 100111111010987 its reverse (789010111111001), we get a palindrome (889121222121988).

The spelling of 100111111010987 in words is "one hundred trillion, one hundred eleven billion, one hundred eleven million, ten thousand, nine hundred eighty-seven".