43243434233 has 2 divisors, whose sum is σ = 43243434234. Its totient is φ = 43243434232.

The previous prime is 43243434211. The next prime is 43243434257. The reversal of 43243434233 is 33243434234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35452370944 + 7791063289 = 188288^2 + 88267^2 .

It is a cyclic number.

It is not a de Polignac number, because 43243434233 - 2¹⁶ = 43243368697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43243434193 and 43243434202.

It is not a weakly prime, because it can be changed into another prime (43243434263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621717116 + 21621717117.

It is an arithmetic number, because the mean of its divisors is an integer number (21621717117).

Almost surely, 2^43243434233 is an apocalyptic number.

It is an amenable number.

43243434233 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243434233 is an equidigital number, since it uses as much as digits as its factorization.

43243434233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 35.

Adding to 43243434233 its reverse (33243434234), we get a palindrome (76486868467).

Subtracting from 43243434233 its reverse (33243434234), we obtain a palindrome (9999999999).

The spelling of 43243434233 in words is "forty-three billion, two hundred forty-three million, four hundred thirty-four thousand, two hundred thirty-three".