12010020803 has 4 divisors (see below), whose sum is σ = 13101840888. Its totient is φ = 10918200720.

The previous prime is 12010020769. The next prime is 12010020829. The reversal of 12010020803 is 30802001021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12010020803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010020863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545910026 + ... + 545910047.

It is an arithmetic number, because the mean of its divisors is an integer number (3275460222).

Almost surely, 2^12010020803 is an apocalyptic number.

12010020803 is a deficient number, since it is larger than the sum of its proper divisors (1091820085).

12010020803 is a wasteful number, since it uses less digits than its factorization.

12010020803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091820084.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12010020803 its reverse (30802001021), we get a palindrome (42812021824).

The spelling of 12010020803 in words is "twelve billion, ten million, twenty thousand, eight hundred three".