11123234409 has 16 divisors (see below), whose sum is σ = 17407791488. Its totient is φ = 6184346112.

The previous prime is 11123234407. The next prime is 11123234413. The reversal of 11123234409 is 90443232111.

It is not a de Polignac number, because 11123234409 - 2¹ = 11123234407 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11123234407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7157032 + ... + 7158585.

It is an arithmetic number, because the mean of its divisors is an integer number (1087986968).

Almost surely, 2^11123234409 is an apocalyptic number.

It is an amenable number.

11123234409 is a deficient number, since it is larger than the sum of its proper divisors (6284557079).

11123234409 is a wasteful number, since it uses less digits than its factorization.

11123234409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14315664.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 11123234409 in words is "eleven billion, one hundred twenty-three million, two hundred thirty-four thousand, four hundred nine".