20404102003 has 8 divisors (see below), whose sum is σ = 20475434736. Its totient is φ = 20332884000.

The previous prime is 20404101929. The next prime is 20404102007. The reversal of 20404102003 is 30020140402.

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 20404102003 - 2²⁹ = 19867231091 is a prime.

It is a super-2 number, since 2×20404102003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20404102007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335653 + ... + 391753.

It is an arithmetic number, because the mean of its divisors is an integer number (2559429342).

Almost surely, 2^20404102003 is an apocalyptic number.

20404102003 is a deficient number, since it is larger than the sum of its proper divisors (71332733).

20404102003 is an equidigital number, since it uses as much as digits as its factorization.

20404102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57365.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20404102003 its reverse (30020140402), we get a palindrome (50424242405).

The spelling of 20404102003 in words is "twenty billion, four hundred four million, one hundred two thousand, three".