12320413 has 6 divisors (see below), whose sum is σ = 14331966. Its totient is φ = 10560312.

The previous prime is 12320411. The next prime is 12320431. The reversal of 12320413 is 31402321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7112889 + 5207524 = 2667^2 + 2282^2 .

It is not a de Polignac number, because 12320413 - 2¹ = 12320411 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 (12320411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125670 + ... + 125767.

It is an arithmetic number, because the mean of its divisors is an integer number (2388661).

Almost surely, 2^12320413 is an apocalyptic number.

It is an amenable number.

12320413 is a deficient number, since it is larger than the sum of its proper divisors (2011553).

12320413 is an equidigital number, since it uses as much as digits as its factorization.

12320413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251451 (or 251444 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12320413 is about 3510.0445866114. The cubic root of 12320413 is about 230.9626508333.

Adding to 12320413 its reverse (31402321), we get a palindrome (43722734).

The spelling of 12320413 in words is "twelve million, three hundred twenty thousand, four hundred thirteen".