20420210434103 has 8 divisors (see below), whose sum is σ = 20500670222208. Its totient is φ = 20339771982904.

The previous prime is 20420210434097. The next prime is 20420210434111. The reversal of 20420210434103 is 30143401202402.

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 20420210434103 - 2²² = 20420206239799 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 (20420210434703) 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, 3415025 + ... + 7245882.

It is an arithmetic number, because the mean of its divisors is an integer number (2562583777776).

Almost surely, 2^{20420210434103} is an apocalyptic number.

20420210434103 is a deficient number, since it is larger than the sum of its proper divisors (80459788105).

20420210434103 is a wasteful number, since it uses less digits than its factorization.

20420210434103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10668453.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20420210434103 its reverse (30143401202402), we get a palindrome (50563611636505).

The spelling of 20420210434103 in words is "twenty trillion, four hundred twenty billion, two hundred ten million, four hundred thirty-four thousand, one hundred three".