20343113143 has 8 divisors (see below), whose sum is σ = 20368071360. Its totient is φ = 20318173440.

The previous prime is 20343113137. The next prime is 20343113201. The reversal of 20343113143 is 34131134302.

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-20343113143 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 (20343153143) 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, 3886338 + ... + 3891568.

It is an arithmetic number, because the mean of its divisors is an integer number (2546008920).

Almost surely, 2^20343113143 is an apocalyptic number.

20343113143 is a deficient number, since it is larger than the sum of its proper divisors (24958217).

20343113143 is a wasteful number, since it uses less digits than its factorization.

20343113143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9257.

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

Adding to 20343113143 its reverse (34131134302), we get a palindrome (54474247445).

The spelling of 20343113143 in words is "twenty billion, three hundred forty-three million, one hundred thirteen thousand, one hundred forty-three".