20014020343 has 4 divisors (see below), whose sum is σ = 20067677608. Its totient is φ = 19960363080.

The previous prime is 20014020289. The next prime is 20014020359. The reversal of 20014020343 is 34302041002.

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-20014020343 is a prime.

It is a super-2 number, since 2×20014020343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20014020343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014020373) 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, 26828073 + ... + 26828818.

It is an arithmetic number, because the mean of its divisors is an integer number (5016919402).

Almost surely, 2^20014020343 is an apocalyptic number.

20014020343 is a deficient number, since it is larger than the sum of its proper divisors (53657265).

20014020343 is an equidigital number, since it uses as much as digits as its factorization.

20014020343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53657264.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20014020343 its reverse (34302041002), we get a palindrome (54316061345).

The spelling of 20014020343 in words is "twenty billion, fourteen million, twenty thousand, three hundred forty-three".