1131132201209 has 2 divisors, whose sum is σ = 1131132201210. Its totient is φ = 1131132201208.

The previous prime is 1131132201197. The next prime is 1131132201223. The reversal of 1131132201209 is 9021022311311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1127147435584 + 3984765625 = 1061672^2 + 63125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131132201209 - 2¹⁶ = 1131132135673 is a prime.

It is a super-2 number, since 2×1131132201209² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131132201239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565566100604 + 565566100605.

It is an arithmetic number, because the mean of its divisors is an integer number (565566100605).

Almost surely, 2^{1131132201209} is an apocalyptic number.

It is an amenable number.

1131132201209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131132201209 is an equidigital number, since it uses as much as digits as its factorization.

1131132201209 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 1131132201209 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-two million, two hundred one thousand, two hundred nine".