1133123309 has 2 divisors, whose sum is σ = 1133123310. Its totient is φ = 1133123308.

The previous prime is 1133123297. The next prime is 1133123323. The reversal of 1133123309 is 9033213311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 995718025 + 137405284 = 31555^2 + 11722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133123309 - 2⁸ = 1133123053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133123339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566561654 + 566561655.

It is an arithmetic number, because the mean of its divisors is an integer number (566561655).

Almost surely, 2^1133123309 is an apocalyptic number.

It is an amenable number.

1133123309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133123309 is an equidigital number, since it uses as much as digits as its factorization.

1133123309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 1133123309 is about 33661.8969905144. The cubic root of 1133123309 is about 1042.5391939135.

The spelling of 1133123309 in words is "one billion, one hundred thirty-three million, one hundred twenty-three thousand, three hundred nine".