20334140343 has 64 divisors (see below), whose sum is σ = 33779980800. Its totient is φ = 11984544000.

The previous prime is 20334140339. The next prime is 20334140381. The reversal of 20334140343 is 34304143302.

20334140343 is a `hidden beast` number, since 203 + 3 + 414 + 0 + 3 + 43 = 666.

It is not a de Polignac number, because 20334140343 - 2² = 20334140339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334140383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1606108 + ... + 1618718.

It is an arithmetic number, because the mean of its divisors is an integer number (527812200).

Almost surely, 2^20334140343 is an apocalyptic number.

20334140343 is a deficient number, since it is larger than the sum of its proper divisors (13445840457).

20334140343 is a wasteful number, since it uses less digits than its factorization.

20334140343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781 (or 12775 counting only the distinct ones).

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

Adding to 20334140343 its reverse (34304143302), we get a palindrome (54638283645).

The spelling of 20334140343 in words is "twenty billion, three hundred thirty-four million, one hundred forty thousand, three hundred forty-three".