12243202132545 has 32 divisors (see below), whose sum is σ = 22010251046400. Its totient is φ = 6456340294272.

The previous prime is 12243202132543. The next prime is 12243202132687. The reversal of 12243202132545 is 54523120234221.

12243202132545 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 320 + 2 + 1 + 325 + 4 + 5 = 666.

It is not a de Polignac number, because 12243202132545 - 2¹ = 12243202132543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12243202132543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509484537 + ... + 509508566.

It is an arithmetic number, because the mean of its divisors is an integer number (687820345200).

Almost surely, 2^{12243202132545} is an apocalyptic number.

12243202132545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12243202132545 is a deficient number, since it is larger than the sum of its proper divisors (9767048913855).

12243202132545 is a wasteful number, since it uses less digits than its factorization.

12243202132545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018993206 (or 1018993200 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 12243202132545 its reverse (54523120234221), we get a palindrome (66766322366766).

The spelling of 12243202132545 in words is "twelve trillion, two hundred forty-three billion, two hundred two million, one hundred thirty-two thousand, five hundred forty-five".