11132321 has 4 divisors (see below), whose sum is σ = 11242644. Its totient is φ = 11022000.

The previous prime is 11132311. The next prime is 11132327. The reversal of 11132321 is 12323111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12323111 = 101 ⋅122011.

It can be written as a sum of positive squares in 2 ways, for example, as 6574096 + 4558225 = 2564^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 11132321 - 2⁶ = 11132257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11132296 and 11132305.

It is not an unprimeable number, because it can be changed into a prime (11132327) 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 3 ways as a sum of consecutive naturals, for example, 55010 + ... + 55211.

It is an arithmetic number, because the mean of its divisors is an integer number (2810661).

Almost surely, 2^11132321 is an apocalyptic number.

It is an amenable number.

11132321 is a deficient number, since it is larger than the sum of its proper divisors (110323).

11132321 is a wasteful number, since it uses less digits than its factorization.

11132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110322.

The product of its digits is 36, while the sum is 14.

The square root of 11132321 is about 3336.5132998386. The cubic root of 11132321 is about 223.2862124294.

Adding to 11132321 its reverse (12323111), we get a palindrome (23455432).

The spelling of 11132321 in words is "eleven million, one hundred thirty-two thousand, three hundred twenty-one".