11023391 has 2 divisors, whose sum is σ = 11023392. Its totient is φ = 11023390.

The previous prime is 11023381. The next prime is 11023403. The reversal of 11023391 is 19332011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11023391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11023381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511695 + 5511696.

It is an arithmetic number, because the mean of its divisors is an integer number (5511696).

Almost surely, 2^11023391 is an apocalyptic number.

11023391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11023391 is an equidigital number, since it uses as much as digits as its factorization.

11023391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 11023391 is about 3320.1492436335. The cubic root of 11023391 is about 222.5555372032. Note that the first 4 decimals are identical.

The spelling of 11023391 in words is "eleven million, twenty-three thousand, three hundred ninety-one".