20043130342403 has 4 divisors (see below), whose sum is σ = 22906434677040. Its totient is φ = 17179826007768.

The previous prime is 20043130342351. The next prime is 20043130342409. The reversal of 20043130342403 is 30424303134002.

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 20043130342403 - 2¹⁶ = 20043130276867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20043130342409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1431652167308 + ... + 1431652167321.

It is an arithmetic number, because the mean of its divisors is an integer number (5726608669260).

Almost surely, 2^{20043130342403} is an apocalyptic number.

20043130342403 is a deficient number, since it is larger than the sum of its proper divisors (2863304334637).

20043130342403 is an equidigital number, since it uses as much as digits as its factorization.

20043130342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863304334636.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 20043130342403 its reverse (30424303134002), we get a palindrome (50467433476405).

The spelling of 20043130342403 in words is "twenty trillion, forty-three billion, one hundred thirty million, three hundred forty-two thousand, four hundred three".