12320663 has 8 divisors (see below), whose sum is σ = 12894336. Its totient is φ = 11750200.

The previous prime is 12320657. The next prime is 12320669. The reversal of 12320663 is 36602321.

It is an interprime number because it is at equal distance from previous prime (12320657) and next prime (12320669).

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

It is a cyclic number.

It is not a de Polignac number, because 12320663 - 2⁴ = 12320647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10748 + ... + 11838.

It is an arithmetic number, because the mean of its divisors is an integer number (1611792).

Almost surely, 2^12320663 is an apocalyptic number.

12320663 is a deficient number, since it is larger than the sum of its proper divisors (573673).

12320663 is a wasteful number, since it uses less digits than its factorization.

12320663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 12320663 is about 3510.0801985140. The cubic root of 12320663 is about 230.9642130177.

Adding to 12320663 its reverse (36602321), we get a palindrome (48922984).

The spelling of 12320663 in words is "twelve million, three hundred twenty thousand, six hundred sixty-three".