1111112120087 has 2 divisors, whose sum is σ = 1111112120088. Its totient is φ = 1111112120086.

The previous prime is 1111112120077. The next prime is 1111112120117. The reversal of 1111112120087 is 7800212111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111112120087 - 2²² = 1111107925783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111112120077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555556060043 + 555556060044.

It is an arithmetic number, because the mean of its divisors is an integer number (555556060044).

Almost surely, 2^{1111112120087} is an apocalyptic number.

1111112120087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111112120087 is an equidigital number, since it uses as much as digits as its factorization.

1111112120087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 26.

Adding to 1111112120087 its reverse (7800212111111), we get a palindrome (8911324231198).

The spelling of 1111112120087 in words is "one trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty thousand, eighty-seven".