20200434343 has 4 divisors (see below), whose sum is σ = 20201565888. Its totient is φ = 20199302800.

The previous prime is 20200434311. The next prime is 20200434389. The reversal of 20200434343 is 34343400202.

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 20200434343 - 2⁵ = 20200434311 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 (20200434643) 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, 538558 + ... + 574843.

It is an arithmetic number, because the mean of its divisors is an integer number (5050391472).

Almost surely, 2^20200434343 is an apocalyptic number.

20200434343 is a deficient number, since it is larger than the sum of its proper divisors (1131545).

20200434343 is a wasteful number, since it uses less digits than its factorization.

20200434343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131544.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20200434343 its reverse (34343400202), we get a palindrome (54543834545).

The spelling of 20200434343 in words is "twenty billion, two hundred million, four hundred thirty-four thousand, three hundred forty-three".