20341434343 has 4 divisors (see below), whose sum is σ = 20398096080. Its totient is φ = 20284772608.

The previous prime is 20341434271. The next prime is 20341434353. The reversal of 20341434343 is 34343414302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34343414302 = 2 ⋅17171707151.

It is a cyclic number.

It is not a de Polignac number, because 20341434343 - 2¹³ = 20341426151 is a prime.

It is a super-2 number, since 2×20341434343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341434353) 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, 28330330 + ... + 28331047.

It is an arithmetic number, because the mean of its divisors is an integer number (5099524020).

Almost surely, 2^20341434343 is an apocalyptic number.

20341434343 is a deficient number, since it is larger than the sum of its proper divisors (56661737).

20341434343 is an equidigital number, since it uses as much as digits as its factorization.

20341434343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56661736.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 20341434343 its reverse (34343414302), we get a palindrome (54684848645).

The spelling of 20341434343 in words is "twenty billion, three hundred forty-one million, four hundred thirty-four thousand, three hundred forty-three".