1120111021987 has 2 divisors, whose sum is σ = 1120111021988. Its totient is φ = 1120111021986.

The previous prime is 1120111021979. The next prime is 1120111022011. The reversal of 1120111021987 is 7891201110211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120111021987 - 2³ = 1120111021979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120111021937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560055510993 + 560055510994.

It is an arithmetic number, because the mean of its divisors is an integer number (560055510994).

Almost surely, 2^{1120111021987} is an apocalyptic number.

1120111021987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120111021987 is an equidigital number, since it uses as much as digits as its factorization.

1120111021987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 34.

The spelling of 1120111021987 in words is "one trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, nine hundred eighty-seven".