20404535303 has 16 divisors (see below), whose sum is σ = 21185556480. Its totient is φ = 19639965696.

The previous prime is 20404535297. The next prime is 20404535339. The reversal of 20404535303 is 30353540402.

It is a cyclic number.

It is not a de Polignac number, because 20404535303 - 2¹² = 20404531207 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 (20404585303) 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, 943550 + ... + 964932.

It is an arithmetic number, because the mean of its divisors is an integer number (1324097280).

Almost surely, 2^20404535303 is an apocalyptic number.

20404535303 is a deficient number, since it is larger than the sum of its proper divisors (781021177).

20404535303 is a wasteful number, since it uses less digits than its factorization.

20404535303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21766.

The product of its (nonzero) digits is 21600, while the sum is 29.

The spelling of 20404535303 in words is "twenty billion, four hundred four million, five hundred thirty-five thousand, three hundred three".