43243401323 has 2 divisors, whose sum is σ = 43243401324. Its totient is φ = 43243401322.

The previous prime is 43243401319. The next prime is 43243401379. The reversal of 43243401323 is 32310434234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43243401323 - 2² = 43243401319 is a prime.

It is not a weakly prime, because it can be changed into another prime (43243407323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621700661 + 21621700662.

It is an arithmetic number, because the mean of its divisors is an integer number (21621700662).

Almost surely, 2^43243401323 is an apocalyptic number.

43243401323 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243401323 is an equidigital number, since it uses as much as digits as its factorization.

43243401323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 43243401323 its reverse (32310434234), we get a palindrome (75553835557).

The spelling of 43243401323 in words is "forty-three billion, two hundred forty-three million, four hundred one thousand, three hundred twenty-three".