20680630243 has 8 divisors (see below), whose sum is σ = 25453083488. Its totient is φ = 16362696384.

The previous prime is 20680630211. The next prime is 20680630253. The reversal of 20680630243 is 34203608602.

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 20680630243 - 2⁵ = 20680630211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20680630199 and 20680630208.

It is not an unprimeable number, because it can be changed into a prime (20680630253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113629746 + ... + 113629927.

It is an arithmetic number, because the mean of its divisors is an integer number (3181635436).

Almost surely, 2^20680630243 is an apocalyptic number.

20680630243 is a deficient number, since it is larger than the sum of its proper divisors (4772453245).

20680630243 is a wasteful number, since it uses less digits than its factorization.

20680630243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227259693.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 20680630243 in words is "twenty billion, six hundred eighty million, six hundred thirty thousand, two hundred forty-three".