1131131299 has 2 divisors, whose sum is σ = 1131131300. Its totient is φ = 1131131298.

The previous prime is 1131131293. The next prime is 1131131327. The reversal of 1131131299 is 9921311311.

It is a weak prime.

It is an emirp because it is prime and its reverse (9921311311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131131299 - 2³ = 1131131291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131131299.

It is not a weakly prime, because it can be changed into another prime (1131131291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565565649 + 565565650.

It is an arithmetic number, because the mean of its divisors is an integer number (565565650).

Almost surely, 2^1131131299 is an apocalyptic number.

1131131299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131131299 is an equidigital number, since it uses as much as digits as its factorization.

1131131299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 31.

The square root of 1131131299 is about 33632.2954762234. The cubic root of 1131131299 is about 1041.9279139716.

The spelling of 1131131299 in words is "one billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred ninety-nine".