20205322343 has 4 divisors (see below), whose sum is σ = 20207141280. Its totient is φ = 20203503408.

The previous prime is 20205322327. The next prime is 20205322367. The reversal of 20205322343 is 34322350202.

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 20205322343 - 2⁴ = 20205322327 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 (20205322393) 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, 892703 + ... + 915056.

It is an arithmetic number, because the mean of its divisors is an integer number (5051785320).

Almost surely, 2^20205322343 is an apocalyptic number.

20205322343 is a deficient number, since it is larger than the sum of its proper divisors (1818937).

20205322343 is a wasteful number, since it uses less digits than its factorization.

20205322343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818936.

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 20205322343 its reverse (34322350202), we get a palindrome (54527672545).

The spelling of 20205322343 in words is "twenty billion, two hundred five million, three hundred twenty-two thousand, three hundred forty-three".