12708303721 has 8 divisors (see below), whose sum is σ = 13091126400. Its totient is φ = 12329448432.

The previous prime is 12708303683. The next prime is 12708303731. The reversal of 12708303721 is 12730380721.

It is a happy number.

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 12708303721 - 2⁷ = 12708303593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12708303731) 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, 985345 + ... + 998158.

It is an arithmetic number, because the mean of its divisors is an integer number (1636390800).

Almost surely, 2^12708303721 is an apocalyptic number.

It is an amenable number.

12708303721 is a deficient number, since it is larger than the sum of its proper divisors (382822679).

12708303721 is a wasteful number, since it uses less digits than its factorization.

12708303721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983695.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 12708303721 in words is "twelve billion, seven hundred eight million, three hundred three thousand, seven hundred twenty-one".