20140042243343 has 4 divisors (see below), whose sum is σ = 21970955174568. Its totient is φ = 18309129312120.

The previous prime is 20140042243337. The next prime is 20140042243393. The reversal of 20140042243343 is 34334224004102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20140042243343 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 (20140042243313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915456465596 + ... + 915456465617.

It is an arithmetic number, because the mean of its divisors is an integer number (5492738793642).

Almost surely, 2^{20140042243343} is an apocalyptic number.

20140042243343 is a deficient number, since it is larger than the sum of its proper divisors (1830912931225).

20140042243343 is a wasteful number, since it uses less digits than its factorization.

20140042243343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830912931224.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 20140042243343 its reverse (34334224004102), we get a palindrome (54474266247445).

The spelling of 20140042243343 in words is "twenty trillion, one hundred forty billion, forty-two million, two hundred forty-three thousand, three hundred forty-three".