11123091 has 12 divisors (see below), whose sum is σ = 18362032. Its totient is φ = 6356016.

The previous prime is 11123071. The next prime is 11123107. The reversal of 11123091 is 19032111.

It is not a de Polignac number, because 11123091 - 2¹³ = 11114899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88216 + ... + 88341.

Almost surely, 2^11123091 is an apocalyptic number.

11123091 is a deficient number, since it is larger than the sum of its proper divisors (7238941).

11123091 is a wasteful number, since it uses less digits than its factorization.

11123091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176570 (or 176567 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 11123091 is about 3335.1298325552. The cubic root of 11123091 is about 223.2244852123.

The spelling of 11123091 in words is "eleven million, one hundred twenty-three thousand, ninety-one".