1131313366 has 4 divisors (see below), whose sum is σ = 1696970052. Its totient is φ = 565656682.

The previous prime is 1131313319. The next prime is 1131313387. The reversal of 1131313366 is 6633131311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6633131311 = 1723 ⋅3849757.

It is a congruent number.

It is an unprimeable number.

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, 282828340 + ... + 282828343.

It is an arithmetic number, because the mean of its divisors is an integer number (424242513).

Almost surely, 2^1131313366 is an apocalyptic number.

1131313366 is a deficient number, since it is larger than the sum of its proper divisors (565656686).

1131313366 is an equidigital number, since it uses as much as digits as its factorization.

1131313366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565656685.

The product of its digits is 2916, while the sum is 28.

The square root of 1131313366 is about 33635.0020960309. The cubic root of 1131313366 is about 1041.9838139108.

Adding to 1131313366 its reverse (6633131311), we get a palindrome (7764444677).

The spelling of 1131313366 in words is "one billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred sixty-six".