11123290 has 16 divisors (see below), whose sum is σ = 20067912. Its totient is φ = 4439104.

The previous prime is 11123263. The next prime is 11123311. The reversal of 11123290 is 9232111.

It can be written as a sum of positive squares in 4 ways, for example, as 3052009 + 8071281 = 1747^2 + 2841^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4572 + ... + 6568.

Almost surely, 2^11123290 is an apocalyptic number.

11123290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11123290 is a deficient number, since it is larger than the sum of its proper divisors (8944622).

11123290 is a wasteful number, since it uses less digits than its factorization.

11123290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11123290 is about 3335.1596663428. The cubic root of 11123290 is about 223.2258164192.

The spelling of 11123290 in words is "eleven million, one hundred twenty-three thousand, two hundred ninety".