1111021100087 has 2 divisors, whose sum is σ = 1111021100088. Its totient is φ = 1111021100086.

The previous prime is 1111021100081. The next prime is 1111021100113. The reversal of 1111021100087 is 7800011201111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111021100087 - 2²² = 1111016905783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111021100081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555510550043 + 555510550044.

It is an arithmetic number, because the mean of its divisors is an integer number (555510550044).

Almost surely, 2^{1111021100087} is an apocalyptic number.

1111021100087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111021100087 is an equidigital number, since it uses as much as digits as its factorization.

1111021100087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 23.

Adding to 1111021100087 its reverse (7800011201111), we get a palindrome (8911032301198).

The spelling of 1111021100087 in words is "one trillion, one hundred eleven billion, twenty-one million, one hundred thousand, eighty-seven".