1121233211009 has 2 divisors, whose sum is σ = 1121233211010. Its totient is φ = 1121233211008.

The previous prime is 1121233210969. The next prime is 1121233211023. The reversal of 1121233211009 is 9001123321211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655699921009 + 465533290000 = 809753^2 + 682300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121233211009 - 2⁸ = 1121233210753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121233271009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560616605504 + 560616605505.

It is an arithmetic number, because the mean of its divisors is an integer number (560616605505).

Almost surely, 2^{1121233211009} is an apocalyptic number.

It is an amenable number.

1121233211009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121233211009 is an equidigital number, since it uses as much as digits as its factorization.

1121233211009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 1121233211009 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred eleven thousand, nine".