12020020403 has 8 divisors (see below), whose sum is σ = 12292697280. Its totient is φ = 11750356800.

The previous prime is 12020020387. The next prime is 12020020477. The reversal of 12020020403 is 30402002021.

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 12020020403 - 2⁴ = 12020020387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020020303) 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, 745250 + ... + 761207.

It is an arithmetic number, because the mean of its divisors is an integer number (1536587160).

Almost surely, 2^12020020403 is an apocalyptic number.

12020020403 is a deficient number, since it is larger than the sum of its proper divisors (272676877).

12020020403 is a wasteful number, since it uses less digits than its factorization.

12020020403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506637.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 12020020403 its reverse (30402002021), we get a palindrome (42422022424).

The spelling of 12020020403 in words is "twelve billion, twenty million, twenty thousand, four hundred three".