1121020119889 has 2 divisors, whose sum is σ = 1121020119890. Its totient is φ = 1121020119888.

The previous prime is 1121020119851. The next prime is 1121020120079. The reversal of 1121020119889 is 9889110201211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 827039279889 + 293980840000 = 909417^2 + 542200^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121020119889 - 2²¹ = 1121018022737 is a prime.

It is a super-2 number, since 2×1121020119889² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121020119589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560510059944 + 560510059945.

It is an arithmetic number, because the mean of its divisors is an integer number (560510059945).

Almost surely, 2^{1121020119889} is an apocalyptic number.

It is an amenable number.

1121020119889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121020119889 is an equidigital number, since it uses as much as digits as its factorization.

1121020119889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 43.

The spelling of 1121020119889 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred nineteen thousand, eight hundred eighty-nine".