11583321 has 8 divisors (see below), whose sum is σ = 15586560. Its totient is φ = 7651152.

The previous prime is 11583311. The next prime is 11583323. The reversal of 11583321 is 12338511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11583321 - 2¹⁰ = 11582297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11583291 and 11583300.

It is not an unprimeable number, because it can be changed into a prime (11583323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17385 + ... + 18038.

It is an arithmetic number, because the mean of its divisors is an integer number (1948320).

Almost surely, 2^11583321 is an apocalyptic number.

It is an amenable number.

11583321 is a deficient number, since it is larger than the sum of its proper divisors (4003239).

11583321 is a wasteful number, since it uses less digits than its factorization.

11583321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35535.

The product of its digits is 720, while the sum is 24.

The square root of 11583321 is about 3403.4278308787. The cubic root of 11583321 is about 226.2616920588.

It can be divided in two parts, 115 and 83321, that added together give a triangular number (83436 = T₄₀₈).

The spelling of 11583321 in words is "eleven million, five hundred eighty-three thousand, three hundred twenty-one".