1131333199 has 2 divisors, whose sum is σ = 1131333200. Its totient is φ = 1131333198.

The previous prime is 1131333197. The next prime is 1131333209. The reversal of 1131333199 is 9913331311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131333199 - 2¹ = 1131333197 is a prime.

Together with 1131333197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131333191) 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, 565666599 + 565666600.

It is an arithmetic number, because the mean of its divisors is an integer number (565666600).

Almost surely, 2^1131333199 is an apocalyptic number.

1131333199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131333199 is an equidigital number, since it uses as much as digits as its factorization.

1131333199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561, while the sum is 34.

The square root of 1131333199 is about 33635.2969215376. The cubic root of 1131333199 is about 1041.9899028645.

The spelling of 1131333199 in words is "one billion, one hundred thirty-one million, three hundred thirty-three thousand, one hundred ninety-nine".