11123434004209 has 2 divisors, whose sum is σ = 11123434004210. Its totient is φ = 11123434004208.

The previous prime is 11123434004161. The next prime is 11123434004227. The reversal of 11123434004209 is 90240043432111.

11123434004209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9896718269025 + 1226715735184 = 3145905^2 + 1107572^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123434004209 - 2²⁹ = 11122897133297 is a prime.

It is not a weakly prime, because it can be changed into another prime (11123434004299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561717002104 + 5561717002105.

It is an arithmetic number, because the mean of its divisors is an integer number (5561717002105).

Almost surely, 2^{11123434004209} is an apocalyptic number.

It is an amenable number.

11123434004209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123434004209 is an equidigital number, since it uses as much as digits as its factorization.

11123434004209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 11123434004209 in words is "eleven trillion, one hundred twenty-three billion, four hundred thirty-four million, four thousand, two hundred nine".