20012144403 has 8 divisors (see below), whose sum is σ = 27333660816. Its totient is φ = 13016028800.

The previous prime is 20012144329. The next prime is 20012144407. The reversal of 20012144403 is 30444121002.

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 20012144403 - 2¹² = 20012140307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20012144403.

It is not an unprimeable number, because it can be changed into a prime (20012144407) 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, 81350058 + ... + 81350303.

It is an arithmetic number, because the mean of its divisors is an integer number (3416707602).

Almost surely, 2^20012144403 is an apocalyptic number.

20012144403 is a deficient number, since it is larger than the sum of its proper divisors (7321516413).

20012144403 is a wasteful number, since it uses less digits than its factorization.

20012144403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162700405.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20012144403 its reverse (30444121002), we get a palindrome (50456265405).

The spelling of 20012144403 in words is "twenty billion, twelve million, one hundred forty-four thousand, four hundred three".