20440141343 has 4 divisors (see below), whose sum is σ = 20461864008. Its totient is φ = 20418418680.

The previous prime is 20440141333. The next prime is 20440141363. The reversal of 20440141343 is 34314104402.

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

It is a cyclic number.

It is not a de Polignac number, because 20440141343 - 2⁴ = 20440141327 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 (20440141333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10859921 + ... + 10861802.

It is an arithmetic number, because the mean of its divisors is an integer number (5115466002).

Almost surely, 2^20440141343 is an apocalyptic number.

20440141343 is a deficient number, since it is larger than the sum of its proper divisors (21722665).

20440141343 is an equidigital number, since it uses as much as digits as its factorization.

20440141343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21722664.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20440141343 its reverse (34314104402), we get a palindrome (54754245745).

The spelling of 20440141343 in words is "twenty billion, four hundred forty million, one hundred forty-one thousand, three hundred forty-three".