20104145003 has 16 divisors (see below), whose sum is σ = 21150638400. Its totient is φ = 19072475136.

The previous prime is 20104144997. The next prime is 20104145059. The reversal of 20104145003 is 30054140102.

It is a cyclic number.

It is not a de Polignac number, because 20104145003 - 2⁶ = 20104144939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104141003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2078723 + ... + 2088371.

It is an arithmetic number, because the mean of its divisors is an integer number (1321914900).

Almost surely, 2^20104145003 is an apocalyptic number.

20104145003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20104145003 is a deficient number, since it is larger than the sum of its proper divisors (1046493397).

20104145003 is a wasteful number, since it uses less digits than its factorization.

20104145003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20104145003 its reverse (30054140102), we get a palindrome (50158285105).

The spelling of 20104145003 in words is "twenty billion, one hundred four million, one hundred forty-five thousand, three".