1121112020009 has 2 divisors, whose sum is σ = 1121112020010. Its totient is φ = 1121112020008.

The previous prime is 1121112019997. The next prime is 1121112020183. The reversal of 1121112020009 is 9000202111211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738233232025 + 382878787984 = 859205^2 + 618772^2 .

It is an emirp because it is prime and its reverse (9000202111211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121112020009 - 2²⁴ = 1121095242793 is a prime.

It is a super-2 number, since 2×1121112020009² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1121112070009) 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, 560556010004 + 560556010005.

It is an arithmetic number, because the mean of its divisors is an integer number (560556010005).

Almost surely, 2^{1121112020009} is an apocalyptic number.

It is an amenable number.

1121112020009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121112020009 is an equidigital number, since it uses as much as digits as its factorization.

1121112020009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1121112020009 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, twenty thousand, nine".