12231343143 has 8 divisors (see below), whose sum is σ = 18120508400. Its totient is φ = 8154228744.

The previous prime is 12231343129. The next prime is 12231343177. The reversal of 12231343143 is 34134313221.

It is a happy number.

12231343143 is a `hidden beast` number, since 1 + 223 + 1 + 3 + 431 + 4 + 3 = 666.

It is not a de Polignac number, because 12231343143 - 2¹⁸ = 12231080999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 453012709 = 12231343143 / (1 + 2 + 2 + 3 + 1 + 3 + 4 + 3 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231343193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226506328 + ... + 226506381.

It is an arithmetic number, because the mean of its divisors is an integer number (2265063550).

Almost surely, 2^12231343143 is an apocalyptic number.

12231343143 is a deficient number, since it is larger than the sum of its proper divisors (5889165257).

12231343143 is an equidigital number, since it uses as much as digits as its factorization.

12231343143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453012718 (or 453012712 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 12231343143 its reverse (34134313221), we get a palindrome (46365656364).

The spelling of 12231343143 in words is "twelve billion, two hundred thirty-one million, three hundred forty-three thousand, one hundred forty-three".