12320530 has 16 divisors (see below), whose sum is σ = 22221504. Its totient is φ = 4918320.

The previous prime is 12320507. The next prime is 12320549. The reversal of 12320530 is 3502321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6019 + ... + 7801.

It is an arithmetic number, because the mean of its divisors is an integer number (1388844).

Almost surely, 2^12320530 is an apocalyptic number.

12320530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320530 is a deficient number, since it is larger than the sum of its proper divisors (9900974).

12320530 is a wasteful number, since it uses less digits than its factorization.

12320530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 12320530 is about 3510.0612530268. The cubic root of 12320530 is about 230.9633819382.

Adding to 12320530 its reverse (3502321), we get a palindrome (15822851).

The spelling of 12320530 in words is "twelve million, three hundred twenty thousand, five hundred thirty".