12000203231313 has 32 divisors (see below), whose sum is σ = 17753136145920. Its totient is φ = 7148594860160.

The previous prime is 12000203231297. The next prime is 12000203231327. The reversal of 12000203231313 is 31313230200021.

It is a cyclic number.

It is not a de Polignac number, because 12000203231313 - 2⁴ = 12000203231297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12000203231313.

It is not an unprimeable number, because it can be changed into a prime (12000203231353) 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, 13804981 + ... + 14648477.

It is an arithmetic number, because the mean of its divisors is an integer number (554785504560).

Almost surely, 2^{12000203231313} is an apocalyptic number.

It is an amenable number.

12000203231313 is a deficient number, since it is larger than the sum of its proper divisors (5752932914607).

12000203231313 is a wasteful number, since it uses less digits than its factorization.

12000203231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850877.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12000203231313 its reverse (31313230200021), we get a palindrome (43313433431334).

The spelling of 12000203231313 in words is "twelve trillion, two hundred three million, two hundred thirty-one thousand, three hundred thirteen".