43012441361 has 2 divisors, whose sum is σ = 43012441362. Its totient is φ = 43012441360.

The previous prime is 43012441337. The next prime is 43012441391. The reversal of 43012441361 is 16314421034.

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., 34171740736 + 8840700625 = 184856^2 + 94025^2 .

It is a cyclic number.

It is not a de Polignac number, because 43012441361 - 2¹⁰ = 43012440337 is a prime.

It is a super-2 number, since 2×43012441361² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43012441391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506220680 + 21506220681.

It is an arithmetic number, because the mean of its divisors is an integer number (21506220681).

Almost surely, 2^43012441361 is an apocalyptic number.

It is an amenable number.

43012441361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43012441361 is an equidigital number, since it uses as much as digits as its factorization.

43012441361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 43012441361 its reverse (16314421034), we get a palindrome (59326862395).

The spelling of 43012441361 in words is "forty-three billion, twelve million, four hundred forty-one thousand, three hundred sixty-one".