1132311209 has 2 divisors, whose sum is σ = 1132311210. Its totient is φ = 1132311208.

The previous prime is 1132311199. The next prime is 1132311211. The reversal of 1132311209 is 9021132311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944209984 + 188101225 = 30728^2 + 13715^2 .

It is an emirp because it is prime and its reverse (9021132311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132311209 is a prime.

Together with 1132311211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1132311109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566155604 + 566155605.

It is an arithmetic number, because the mean of its divisors is an integer number (566155605).

Almost surely, 2^1132311209 is an apocalyptic number.

It is an amenable number.

1132311209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132311209 is an equidigital number, since it uses as much as digits as its factorization.

1132311209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1132311209 is about 33649.8322284079. The cubic root of 1132311209 is about 1042.2900746828.

The spelling of 1132311209 in words is "one billion, one hundred thirty-two million, three hundred eleven thousand, two hundred nine".