12320634449 has 4 divisors (see below), whose sum is σ = 12322258740. Its totient is φ = 12319010160.

The previous prime is 12320634367. The next prime is 12320634461. The reversal of 12320634449 is 94443602321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11279926849 + 1040707600 = 106207^2 + 32260^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320634449 - 2¹² = 12320630353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320634049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800714 + ... + 815955.

It is an arithmetic number, because the mean of its divisors is an integer number (3080564685).

Almost surely, 2^12320634449 is an apocalyptic number.

It is an amenable number.

12320634449 is a deficient number, since it is larger than the sum of its proper divisors (1624291).

12320634449 is an equidigital number, since it uses as much as digits as its factorization.

12320634449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624290.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 12320634449 in words is "twelve billion, three hundred twenty million, six hundred thirty-four thousand, four hundred forty-nine".