1120021987241 has 2 divisors, whose sum is σ = 1120021987242. Its totient is φ = 1120021987240.

The previous prime is 1120021987229. The next prime is 1120021987297. The reversal of 1120021987241 is 1427891200211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869781929641 + 250240057600 = 932621^2 + 500240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120021987241 - 2¹⁰ = 1120021986217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120021987195 and 1120021987204.

It is not a weakly prime, because it can be changed into another prime (1120021917241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560010993620 + 560010993621.

It is an arithmetic number, because the mean of its divisors is an integer number (560010993621).

Almost surely, 2^{1120021987241} is an apocalyptic number.

It is an amenable number.

1120021987241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120021987241 is an equidigital number, since it uses as much as digits as its factorization.

1120021987241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 1120021987241 in words is "one trillion, one hundred twenty billion, twenty-one million, nine hundred eighty-seven thousand, two hundred forty-one".