43234643233 has 4 divisors (see below), whose sum is σ = 43235642560. Its totient is φ = 43233643908.

The previous prime is 43234643197. The next prime is 43234643281. The reversal of 43234643233 is 33234643234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43234643233 - 2²¹ = 43232546081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43234643192 and 43234643201.

It is not an unprimeable number, because it can be changed into a prime (43234649233) 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, 431685 + ... + 522322.

It is an arithmetic number, because the mean of its divisors is an integer number (10808910640).

Almost surely, 2^43234643233 is an apocalyptic number.

It is an amenable number.

43234643233 is a deficient number, since it is larger than the sum of its proper divisors (999327).

43234643233 is an equidigital number, since it uses as much as digits as its factorization.

43234643233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999326.

The product of its digits is 373248, while the sum is 37.

Subtracting from 43234643233 its reverse (33234643234), we obtain a palindrome (9999999999).

The spelling of 43234643233 in words is "forty-three billion, two hundred thirty-four million, six hundred forty-three thousand, two hundred thirty-three".