43340231323 has 2 divisors, whose sum is σ = 43340231324. Its totient is φ = 43340231322.

The previous prime is 43340231321. The next prime is 43340231383. The reversal of 43340231323 is 32313204334.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43340231323 - 2¹ = 43340231321 is a prime.

It is a super-2 number, since 2×43340231323² (a number of 22 digits) contains 22 as substring.

Together with 43340231321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43340231291 and 43340231300.

It is not a weakly prime, because it can be changed into another prime (43340231321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21670115661 + 21670115662.

It is an arithmetic number, because the mean of its divisors is an integer number (21670115662).

Almost surely, 2^43340231323 is an apocalyptic number.

43340231323 is a deficient number, since it is larger than the sum of its proper divisors (1).

43340231323 is an equidigital number, since it uses as much as digits as its factorization.

43340231323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 43340231323 its reverse (32313204334), we get a palindrome (75653435657).

The spelling of 43340231323 in words is "forty-three billion, three hundred forty million, two hundred thirty-one thousand, three hundred twenty-three".