1120071721987 has 2 divisors, whose sum is σ = 1120071721988. Its totient is φ = 1120071721986.

The previous prime is 1120071721957. The next prime is 1120071722051. The reversal of 1120071721987 is 7891271700211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120071721987 - 2¹⁹ = 1120071197699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120071721957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560035860993 + 560035860994.

It is an arithmetic number, because the mean of its divisors is an integer number (560035860994).

Almost surely, 2^{1120071721987} is an apocalyptic number.

1120071721987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120071721987 is an equidigital number, since it uses as much as digits as its factorization.

1120071721987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 46.

The spelling of 1120071721987 in words is "one trillion, one hundred twenty billion, seventy-one million, seven hundred twenty-one thousand, nine hundred eighty-seven".