43133021441 has 2 divisors, whose sum is σ = 43133021442. Its totient is φ = 43133021440.

The previous prime is 43133021419. The next prime is 43133021447. The reversal of 43133021441 is 14412033134.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40292131441 + 2840890000 = 200729^2 + 53300^2 .

It is a cyclic number.

It is not a de Polignac number, because 43133021441 - 2²⁶ = 43065912577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43133021441.

It is not a weakly prime, because it can be changed into another prime (43133021447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21566510720 + 21566510721.

It is an arithmetic number, because the mean of its divisors is an integer number (21566510721).

Almost surely, 2^43133021441 is an apocalyptic number.

It is an amenable number.

43133021441 is a deficient number, since it is larger than the sum of its proper divisors (1).

43133021441 is an equidigital number, since it uses as much as digits as its factorization.

43133021441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 43133021441 its reverse (14412033134), we get a palindrome (57545054575).

The spelling of 43133021441 in words is "forty-three billion, one hundred thirty-three million, twenty-one thousand, four hundred forty-one".