43242231401 has 2 divisors, whose sum is σ = 43242231402. Its totient is φ = 43242231400.

The previous prime is 43242231377. The next prime is 43242231433. The reversal of 43242231401 is 10413224234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35156625001 + 8085606400 = 187501^2 + 89920^2 .

It is a cyclic number.

It is not a de Polignac number, because 43242231401 - 2¹⁰ = 43242230377 is a prime.

It is not a weakly prime, because it can be changed into another prime (43242231481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621115700 + 21621115701.

It is an arithmetic number, because the mean of its divisors is an integer number (21621115701).

Almost surely, 2^43242231401 is an apocalyptic number.

It is an amenable number.

43242231401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43242231401 is an equidigital number, since it uses as much as digits as its factorization.

43242231401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43242231401 its reverse (10413224234), we get a palindrome (53655455635).

The spelling of 43242231401 in words is "forty-three billion, two hundred forty-two million, two hundred thirty-one thousand, four hundred one".