43253320441 has 2 divisors, whose sum is σ = 43253320442. Its totient is φ = 43253320440.

The previous prime is 43253320387. The next prime is 43253320543. The reversal of 43253320441 is 14402335234.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29964994816 + 13288325625 = 173104^2 + 115275^2 .

It is a cyclic number.

It is not a de Polignac number, because 43253320441 - 2²³ = 43244931833 is a prime.

It is not a weakly prime, because it can be changed into another prime (43253360441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626660220 + 21626660221.

It is an arithmetic number, because the mean of its divisors is an integer number (21626660221).

Almost surely, 2^43253320441 is an apocalyptic number.

It is an amenable number.

43253320441 is a deficient number, since it is larger than the sum of its proper divisors (1).

43253320441 is an equidigital number, since it uses as much as digits as its factorization.

43253320441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 43253320441 its reverse (14402335234), we get a palindrome (57655655675).

The spelling of 43253320441 in words is "forty-three billion, two hundred fifty-three million, three hundred twenty thousand, four hundred forty-one".