20433342343 has 4 divisors (see below), whose sum is σ = 20433738088. Its totient is φ = 20432946600.

The previous prime is 20433342331. The next prime is 20433342451. The reversal of 20433342343 is 34324333402.

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 20433342343 - 2²⁵ = 20399787911 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 (20433342313) 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, 106296 + ... + 228397.

It is an arithmetic number, because the mean of its divisors is an integer number (5108434522).

Almost surely, 2^20433342343 is an apocalyptic number.

20433342343 is a deficient number, since it is larger than the sum of its proper divisors (395745).

20433342343 is an equidigital number, since it uses as much as digits as its factorization.

20433342343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395744.

The product of its (nonzero) digits is 62208, while the sum is 31.

Adding to 20433342343 its reverse (34324333402), we get a palindrome (54757675745).

The spelling of 20433342343 in words is "twenty billion, four hundred thirty-three million, three hundred forty-two thousand, three hundred forty-three".