12205330523 has 8 divisors (see below), whose sum is σ = 13603464720. Its totient is φ = 10882771200.

The previous prime is 12205330507. The next prime is 12205330573. The reversal of 12205330523 is 32503350221.

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 12205330523 - 2⁴ = 12205330507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12205330492 and 12205330501.

It is not an unprimeable number, because it can be changed into a prime (12205330573) 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, 18893378 + ... + 18894023.

It is an arithmetic number, because the mean of its divisors is an integer number (1700433090).

Almost surely, 2^12205330523 is an apocalyptic number.

12205330523 is a deficient number, since it is larger than the sum of its proper divisors (1398134197).

12205330523 is a wasteful number, since it uses less digits than its factorization.

12205330523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37787437.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 12205330523 its reverse (32503350221), we get a palindrome (44708680744).

The spelling of 12205330523 in words is "twelve billion, two hundred five million, three hundred thirty thousand, five hundred twenty-three".