20140321143 has 4 divisors (see below), whose sum is σ = 26853761528. Its totient is φ = 13426880760.

The previous prime is 20140321133. The next prime is 20140321153. The reversal of 20140321143 is 34112304102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20140321133) and next prime (20140321153).

It is not a de Polignac number, because 20140321143 - 2⁸ = 20140320887 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 (20140321133) 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 3 ways as a sum of consecutive naturals, for example, 3356720188 + ... + 3356720193.

It is an arithmetic number, because the mean of its divisors is an integer number (6713440382).

Almost surely, 2^20140321143 is an apocalyptic number.

20140321143 is a deficient number, since it is larger than the sum of its proper divisors (6713440385).

20140321143 is an equidigital number, since it uses as much as digits as its factorization.

20140321143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713440384.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20140321143 its reverse (34112304102), we get a palindrome (54252625245).

The spelling of 20140321143 in words is "twenty billion, one hundred forty million, three hundred twenty-one thousand, one hundred forty-three".