20727303143 has 4 divisors (see below), whose sum is σ = 20737123968. Its totient is φ = 20717482320.

The previous prime is 20727303131. The next prime is 20727303161. The reversal of 20727303143 is 34130372702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34130372702 = 2 ⋅17065186351.

It is a cyclic number.

It is not a de Polignac number, because 20727303143 - 2¹⁴ = 20727286759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20727306143) 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, 4907246 + ... + 4911467.

It is an arithmetic number, because the mean of its divisors is an integer number (5184280992).

Almost surely, 2^20727303143 is an apocalyptic number.

20727303143 is a deficient number, since it is larger than the sum of its proper divisors (9820825).

20727303143 is an equidigital number, since it uses as much as digits as its factorization.

20727303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820824.

The product of its (nonzero) digits is 21168, while the sum is 32.

Adding to 20727303143 its reverse (34130372702), we get a palindrome (54857675845).

The spelling of 20727303143 in words is "twenty billion, seven hundred twenty-seven million, three hundred three thousand, one hundred forty-three".