231433143323 has 4 divisors (see below), whose sum is σ = 233556383280. Its totient is φ = 229309903368.

The previous prime is 231433143223. The next prime is 231433143341. The reversal of 231433143323 is 323341334132.

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

It is a cyclic number.

It is not a de Polignac number, because 231433143323 - 2³⁴ = 214253274139 is a prime.

It is a super-2 number, since 2×231433143323² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231433143323.

It is not an unprimeable number, because it can be changed into a prime (231433143343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061619815 + ... + 1061620032.

It is an arithmetic number, because the mean of its divisors is an integer number (58389095820).

Almost surely, 2^231433143323 is an apocalyptic number.

231433143323 is a deficient number, since it is larger than the sum of its proper divisors (2123239957).

231433143323 is a wasteful number, since it uses less digits than its factorization.

231433143323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123239956.

The product of its digits is 46656, while the sum is 32.

Adding to 231433143323 its reverse (323341334132), we get a palindrome (554774477455).

The spelling of 231433143323 in words is "two hundred thirty-one billion, four hundred thirty-three million, one hundred forty-three thousand, three hundred twenty-three".