20045535124103 has 16 divisors (see below), whose sum is σ = 21164014277280. Its totient is φ = 18956783803776.

The previous prime is 20045535124079. The next prime is 20045535124187. The reversal of 20045535124103 is 30142153554002.

It is a cyclic number.

It is not a de Polignac number, because 20045535124103 - 2³⁰ = 20044461382279 is a prime.

It is a super-2 number, since 2×20045535124103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045535124003) 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 15 ways as a sum of consecutive naturals, for example, 10206800 + ... + 12011237.

It is an arithmetic number, because the mean of its divisors is an integer number (1322750892330).

Almost surely, 2^{20045535124103} is an apocalyptic number.

20045535124103 is a deficient number, since it is larger than the sum of its proper divisors (1118479153177).

20045535124103 is a wasteful number, since it uses less digits than its factorization.

20045535124103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22218706.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20045535124103 its reverse (30142153554002), we get a palindrome (50187688678105).

The spelling of 20045535124103 in words is "twenty trillion, forty-five billion, five hundred thirty-five million, one hundred twenty-four thousand, one hundred three".