12205819503 has 16 divisors (see below), whose sum is σ = 18666009600. Its totient is φ = 7874721720.

The previous prime is 12205819499. The next prime is 12205819517. The reversal of 12205819503 is 30591850221.

12205819503 is a `hidden beast` number, since 1 + 2 + 20 + 581 + 9 + 50 + 3 = 666.

It is not a de Polignac number, because 12205819503 - 2² = 12205819499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205819543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7290573 + ... + 7292246.

It is an arithmetic number, because the mean of its divisors is an integer number (1166625600).

Almost surely, 2^12205819503 is an apocalyptic number.

12205819503 is a deficient number, since it is larger than the sum of its proper divisors (6460190097).

12205819503 is a wasteful number, since it uses less digits than its factorization.

12205819503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14582859 (or 14582853 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 12205819503 in words is "twelve billion, two hundred five million, eight hundred nineteen thousand, five hundred three".