11321011 has 4 divisors (see below), whose sum is σ = 12191872.
Its totient is φ = 10450152.
The previous prime is 11321003. The next prime is 11321029. The reversal of 11321011 is 11012311.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11012311 = 17 ⋅647783.
It is a cyclic number.
It is not a de Polignac number, because 11321011 - 23 = 11321003 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (11321071) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435411 + ... + 435436.
It is an arithmetic number, because the mean of its divisors is an integer number (3047968).
Almost surely, 211321011 is an apocalyptic number.
11321011 is a deficient number, since it is larger than the sum of its proper divisors (870861).
11321011 is an equidigital number, since it uses as much as digits as its factorization.
11321011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 870860.
The product of its (nonzero) digits is 6, while the sum is 10.
The square root of 11321011 is about 3364.6710091776.
The cubic root of 11321011 is about 224.5406992646.
Adding to 11321011 its reverse (11012311), we get a palindrome (22333322).
The spelling of 11321011 in words is "eleven million, three hundred twenty-one thousand, eleven".