11730321 has 12 divisors (see below), whose sum is σ = 17231760. Its totient is φ = 7687320.

The previous prime is 11730319. The next prime is 11730337. The reversal of 11730321 is 12303711.

It is not a de Polignac number, because 11730321 - 2¹ = 11730319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11730294 and 11730303.

It is not an unprimeable number, because it can be changed into a prime (11730311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10515 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (1435980).

Almost surely, 2^11730321 is an apocalyptic number.

It is an amenable number.

11730321 is a deficient number, since it is larger than the sum of its proper divisors (5501439).

11730321 is a wasteful number, since it uses less digits than its factorization.

11730321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22156 (or 22153 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 11730321 is about 3424.9556201504. The cubic root of 11730321 is about 227.2148082761.

The spelling of 11730321 in words is "eleven million, seven hundred thirty thousand, three hundred twenty-one".