12320407 has 8 divisors (see below), whose sum is σ = 13465872. Its totient is φ = 11179200.

The previous prime is 12320401. The next prime is 12320411. The reversal of 12320407 is 70402321.

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 12320407 - 2²³ = 3931799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320401) 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, 10683 + ... + 11779.

It is an arithmetic number, because the mean of its divisors is an integer number (1683234).

Almost surely, 2^12320407 is an apocalyptic number.

12320407 is a deficient number, since it is larger than the sum of its proper divisors (1145465).

12320407 is a wasteful number, since it uses less digits than its factorization.

12320407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12320407 is about 3510.0437319213. The cubic root of 12320407 is about 230.9626133406.

Adding to 12320407 its reverse (70402321), we get a palindrome (82722728).

The spelling of 12320407 in words is "twelve million, three hundred twenty thousand, four hundred seven".