20120404403 has 8 divisors (see below), whose sum is σ = 22028775600. Its totient is φ = 18225240480.

The previous prime is 20120404313. The next prime is 20120404433. The reversal of 20120404403 is 30440402102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120404403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120404433) 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, 3298628 + ... + 3304721.

It is an arithmetic number, because the mean of its divisors is an integer number (2753596950).

Almost surely, 2^20120404403 is an apocalyptic number.

20120404403 is a deficient number, since it is larger than the sum of its proper divisors (1908371197).

20120404403 is a wasteful number, since it uses less digits than its factorization.

20120404403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603637.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20120404403 its reverse (30440402102), we get a palindrome (50560806505).

The spelling of 20120404403 in words is "twenty billion, one hundred twenty million, four hundred four thousand, four hundred three".