1101443009 has 2 divisors, whose sum is σ = 1101443010. Its totient is φ = 1101443008.

The previous prime is 1101442987. The next prime is 1101443033. The reversal of 1101443009 is 9003441011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1082607409 + 18835600 = 32903^2 + 4340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101443009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101443059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550721504 + 550721505.

It is an arithmetic number, because the mean of its divisors is an integer number (550721505).

Almost surely, 2^1101443009 is an apocalyptic number.

It is an amenable number.

1101443009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101443009 is an equidigital number, since it uses as much as digits as its factorization.

1101443009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1101443009 is about 33187.9949529947. The cubic root of 1101443009 is about 1032.7313089747.

The spelling of 1101443009 in words is "one billion, one hundred one million, four hundred forty-three thousand, nine".