20344130243 has 8 divisors (see below), whose sum is σ = 21478426320. Its totient is φ = 19216189440.

The previous prime is 20344130227. The next prime is 20344130251. The reversal of 20344130243 is 34203144302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20344130243 - 2⁴ = 20344130227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20344130203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1582238 + ... + 1595043.

It is an arithmetic number, because the mean of its divisors is an integer number (2684803290).

Almost surely, 2^20344130243 is an apocalyptic number.

20344130243 is a deficient number, since it is larger than the sum of its proper divisors (1134296077).

20344130243 is a wasteful number, since it uses less digits than its factorization.

20344130243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177637.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20344130243 its reverse (34203144302), we get a palindrome (54547274545).

The spelling of 20344130243 in words is "twenty billion, three hundred forty-four million, one hundred thirty thousand, two hundred forty-three".