20334424243 has 4 divisors (see below), whose sum is σ = 23239342000. Its totient is φ = 17429506488.

The previous prime is 20334424199. The next prime is 20334424249. The reversal of 20334424243 is 34242443302.

It is a happy number.

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 20334424243 - 2¹³ = 20334416051 is a prime.

It is a super-2 number, since 2×20334424243² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20334424249) 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, 1452458868 + ... + 1452458881.

It is an arithmetic number, because the mean of its divisors is an integer number (5809835500).

Almost surely, 2^20334424243 is an apocalyptic number.

20334424243 is a deficient number, since it is larger than the sum of its proper divisors (2904917757).

20334424243 is an equidigital number, since it uses as much as digits as its factorization.

20334424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904917756.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 20334424243 its reverse (34242443302), we get a palindrome (54576867545).

The spelling of 20334424243 in words is "twenty billion, three hundred thirty-four million, four hundred twenty-four thousand, two hundred forty-three".