12331140203243 has 4 divisors (see below), whose sum is σ = 12617910905688. Its totient is φ = 12044369500800.

The previous prime is 12331140203171. The next prime is 12331140203257. The reversal of 12331140203243 is 34230204113321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12331140203243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331140203743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143385351158 + ... + 143385351243.

It is an arithmetic number, because the mean of its divisors is an integer number (3154477726422).

Almost surely, 2^{12331140203243} is an apocalyptic number.

12331140203243 is a deficient number, since it is larger than the sum of its proper divisors (286770702445).

12331140203243 is an equidigital number, since it uses as much as digits as its factorization.

12331140203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286770702444.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 12331140203243 its reverse (34230204113321), we get a palindrome (46561344316564).

The spelling of 12331140203243 in words is "twelve trillion, three hundred thirty-one billion, one hundred forty million, two hundred three thousand, two hundred forty-three".