20313143143 has 8 divisors (see below), whose sum is σ = 21550622720. Its totient is φ = 19092500280.

The previous prime is 20313143131. The next prime is 20313143171. The reversal of 20313143143 is 34134131302.

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 20313143143 - 2²¹ = 20311045991 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 (20313143843) 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, 4206693 + ... + 4211518.

It is an arithmetic number, because the mean of its divisors is an integer number (2693827840).

Almost surely, 2^20313143143 is an apocalyptic number.

20313143143 is a deficient number, since it is larger than the sum of its proper divisors (1237479577).

20313143143 is a wasteful number, since it uses less digits than its factorization.

20313143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418357.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20313143143 its reverse (34134131302), we get a palindrome (54447274445).

The spelling of 20313143143 in words is "twenty billion, three hundred thirteen million, one hundred forty-three thousand, one hundred forty-three".