20110404403 has 8 divisors (see below), whose sum is σ = 21203057600. Its totient is φ = 19021172328.

The previous prime is 20110404329. The next prime is 20110404427. The reversal of 20110404403 is 30440401102.

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 20110404403 - 2¹⁷ = 20110273331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20110404493) 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 7 ways as a sum of consecutive naturals, for example, 843201 + ... + 866722.

It is an arithmetic number, because the mean of its divisors is an integer number (2650382200).

Almost surely, 2^20110404403 is an apocalyptic number.

20110404403 is a deficient number, since it is larger than the sum of its proper divisors (1092653197).

20110404403 is a wasteful number, since it uses less digits than its factorization.

20110404403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710561.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20110404403 its reverse (30440401102), we get a palindrome (50550805505).

The spelling of 20110404403 in words is "twenty billion, one hundred ten million, four hundred four thousand, four hundred three".