20104432403 has 8 divisors (see below), whose sum is σ = 22126198896. Its totient is φ = 18115014400.

The previous prime is 20104432393. The next prime is 20104432409. The reversal of 20104432403 is 30423440102.

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 20104432403 - 2¹² = 20104428307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104432409) 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, 8085818 + ... + 8088303.

It is an arithmetic number, because the mean of its divisors is an integer number (2765774862).

Almost surely, 2^20104432403 is an apocalyptic number.

20104432403 is a deficient number, since it is larger than the sum of its proper divisors (2021766493).

20104432403 is a wasteful number, since it uses less digits than its factorization.

20104432403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16174245.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20104432403 its reverse (30423440102), we get a palindrome (50527872505).

The spelling of 20104432403 in words is "twenty billion, one hundred four million, four hundred thirty-two thousand, four hundred three".