20727723143 has 8 divisors (see below), whose sum is σ = 22350819120. Its totient is φ = 19157843520.

The previous prime is 20727723131. The next prime is 20727723157. The reversal of 20727723143 is 34132772702.

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 20727723143 - 2⁸ = 20727722887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20727723097 and 20727723106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20727713143) 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, 13303280 + ... + 13304837.

It is an arithmetic number, because the mean of its divisors is an integer number (2793852390).

Almost surely, 2^20727723143 is an apocalyptic number.

20727723143 is a deficient number, since it is larger than the sum of its proper divisors (1623095977).

20727723143 is a wasteful number, since it uses less digits than its factorization.

20727723143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26608177.

The product of its (nonzero) digits is 98784, while the sum is 38.

The spelling of 20727723143 in words is "twenty billion, seven hundred twenty-seven million, seven hundred twenty-three thousand, one hundred forty-three".