12003243255 has 32 divisors (see below), whose sum is σ = 22462214400. Its totient is φ = 6064795296.

The previous prime is 12003243253. The next prime is 12003243283. The reversal of 12003243255 is 55234230021.

It is a happy number.

12003243255 is a `hidden beast` number, since 12 + 0 + 0 + 324 + 325 + 5 = 666.

It is not a de Polignac number, because 12003243255 - 2¹ = 12003243253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003243253) 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, 2337249 + ... + 2342378.

It is an arithmetic number, because the mean of its divisors is an integer number (701944200).

Almost surely, 2^12003243255 is an apocalyptic number.

12003243255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12003243255 is a deficient number, since it is larger than the sum of its proper divisors (10458971145).

12003243255 is a wasteful number, since it uses less digits than its factorization.

12003243255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679660 (or 4679654 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 12003243255 its reverse (55234230021), we get a palindrome (67237473276).

The spelling of 12003243255 in words is "twelve billion, three million, two hundred forty-three thousand, two hundred fifty-five".