12132112405 has 16 divisors (see below), whose sum is σ = 16759779840. Its totient is φ = 8258435712.

The previous prime is 12132112403. The next prime is 12132112423. The reversal of 12132112405 is 50421123121.

It is a cyclic number.

It is not a de Polignac number, because 12132112405 - 2¹ = 12132112403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132112403) 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, 1260285 + ... + 1269874.

It is an arithmetic number, because the mean of its divisors is an integer number (1047486240).

Almost surely, 2^12132112405 is an apocalyptic number.

It is an amenable number.

12132112405 is a deficient number, since it is larger than the sum of its proper divisors (4627667435).

12132112405 is a wasteful number, since it uses less digits than its factorization.

12132112405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530308.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 12132112405 its reverse (50421123121), we get a palindrome (62553235526).

The spelling of 12132112405 in words is "twelve billion, one hundred thirty-two million, one hundred twelve thousand, four hundred five".