43243344401 has 2 divisors, whose sum is σ = 43243344402. Its totient is φ = 43243344400.

The previous prime is 43243344373. The next prime is 43243344409. The reversal of 43243344401 is 10444334234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32184718801 + 11058625600 = 179401^2 + 105160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43243344401 is a prime.

It is not a weakly prime, because it can be changed into another prime (43243344409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621672200 + 21621672201.

It is an arithmetic number, because the mean of its divisors is an integer number (21621672201).

Almost surely, 2^43243344401 is an apocalyptic number.

It is an amenable number.

43243344401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243344401 is an equidigital number, since it uses as much as digits as its factorization.

43243344401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 43243344401 its reverse (10444334234), we get a palindrome (53687678635).

The spelling of 43243344401 in words is "forty-three billion, two hundred forty-three million, three hundred forty-four thousand, four hundred one".