12205040503 has 8 divisors (see below), whose sum is σ = 12994385040. Its totient is φ = 11423629440.

The previous prime is 12205040489. The next prime is 12205040539. The reversal of 12205040503 is 30504050221.

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 12205040503 - 2²¹ = 12202943351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205040593) 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, 1980193 + ... + 1986346.

It is an arithmetic number, because the mean of its divisors is an integer number (1624298130).

Almost surely, 2^12205040503 is an apocalyptic number.

12205040503 is a deficient number, since it is larger than the sum of its proper divisors (789344537).

12205040503 is a wasteful number, since it uses less digits than its factorization.

12205040503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966737.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 12205040503 its reverse (30504050221), we get a palindrome (42709090724).

The spelling of 12205040503 in words is "twelve billion, two hundred five million, forty thousand, five hundred three".