20134430343 has 12 divisors (see below), whose sum is σ = 30021229888. Its totient is φ = 12989954880.

The previous prime is 20134430311. The next prime is 20134430399. The reversal of 20134430343 is 34303443102.

It is not a de Polignac number, because 20134430343 - 2⁵ = 20134430311 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 (20134430143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36082930 + ... + 36083487.

Almost surely, 2^20134430343 is an apocalyptic number.

20134430343 is a deficient number, since it is larger than the sum of its proper divisors (9886799545).

20134430343 is a wasteful number, since it uses less digits than its factorization.

20134430343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72166454 (or 72166451 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20134430343 its reverse (34303443102), we get a palindrome (54437873445).

The spelling of 20134430343 in words is "twenty billion, one hundred thirty-four million, four hundred thirty thousand, three hundred forty-three".