20450530643323 has 8 divisors (see below), whose sum is σ = 22310065269360. Its totient is φ = 18591061930080.

The previous prime is 20450530643317. The next prime is 20450530643339. The reversal of 20450530643323 is 32334603505402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20450530643323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20450530643363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15828340 + ... + 17071537.

It is an arithmetic number, because the mean of its divisors is an integer number (2788758158670).

Almost surely, 2^{20450530643323} is an apocalyptic number.

20450530643323 is a deficient number, since it is larger than the sum of its proper divisors (1859534626037).

20450530643323 is a wasteful number, since it uses less digits than its factorization.

20450530643323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32956397.

The product of its (nonzero) digits is 777600, while the sum is 40.

The spelling of 20450530643323 in words is "twenty trillion, four hundred fifty billion, five hundred thirty million, six hundred forty-three thousand, three hundred twenty-three".