1133323231 has 2 divisors, whose sum is σ = 1133323232. Its totient is φ = 1133323230.

The previous prime is 1133323223. The next prime is 1133323237. The reversal of 1133323231 is 1323233311.

It is a strong prime.

It is an emirp because it is prime and its reverse (1323233311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1133323231 - 2³ = 1133323223 is a prime.

It is a super-2 number, since 2×1133323231² = 2568843091848558722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133323237) 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, 566661615 + 566661616.

It is an arithmetic number, because the mean of its divisors is an integer number (566661616).

Almost surely, 2^1133323231 is an apocalyptic number.

1133323231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133323231 is an equidigital number, since it uses as much as digits as its factorization.

1133323231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 22.

The square root of 1133323231 is about 33664.8664188646. The cubic root of 1133323231 is about 1042.6005035881.

Adding to 1133323231 its reverse (1323233311), we get a palindrome (2456556542).

The spelling of 1133323231 in words is "one billion, one hundred thirty-three million, three hundred twenty-three thousand, two hundred thirty-one".