43000068361 has 2 divisors, whose sum is σ = 43000068362. Its totient is φ = 43000068360.

The previous prime is 43000068359. The next prime is 43000068383. The reversal of 43000068361 is 16386000034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30777439225 + 12222629136 = 175435^2 + 110556^2 .

It is a cyclic number.

It is not a de Polignac number, because 43000068361 - 2¹ = 43000068359 is a prime.

Together with 43000068359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43000068161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500034180 + 21500034181.

It is an arithmetic number, because the mean of its divisors is an integer number (21500034181).

Almost surely, 2^43000068361 is an apocalyptic number.

It is an amenable number.

43000068361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43000068361 is an equidigital number, since it uses as much as digits as its factorization.

43000068361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 43000068361 its reverse (16386000034), we get a palindrome (59386068395).

The spelling of 43000068361 in words is "forty-three billion, sixty-eight thousand, three hundred sixty-one".