1131233263 has 2 divisors, whose sum is σ = 1131233264. Its totient is φ = 1131233262.

The previous prime is 1131233239. The next prime is 1131233269. The reversal of 1131233263 is 3623321311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131233263 - 2¹³ = 1131225071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131233269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565616631 + 565616632.

It is an arithmetic number, because the mean of its divisors is an integer number (565616632).

Almost surely, 2^1131233263 is an apocalyptic number.

1131233263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131233263 is an equidigital number, since it uses as much as digits as its factorization.

1131233263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

The square root of 1131233263 is about 33633.8113064815. The cubic root of 1131233263 is about 1041.9592206660.

Adding to 1131233263 its reverse (3623321311), we get a palindrome (4754554574).

The spelling of 1131233263 in words is "one billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred sixty-three".