12051720683 has 4 divisors (see below), whose sum is σ = 12308140320. Its totient is φ = 11795301048.

The previous prime is 12051720661. The next prime is 12051720749. The reversal of 12051720683 is 38602715021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12051720683 - 2¹⁸ = 12051458539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12051720613) 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, 128209748 + ... + 128209841.

It is an arithmetic number, because the mean of its divisors is an integer number (3077035080).

Almost surely, 2^12051720683 is an apocalyptic number.

12051720683 is a deficient number, since it is larger than the sum of its proper divisors (256419637).

12051720683 is an equidigital number, since it uses as much as digits as its factorization.

12051720683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256419636.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 12051720683 in words is "twelve billion, fifty-one million, seven hundred twenty thousand, six hundred eighty-three".