40243643307341 has 2 divisors, whose sum is σ = 40243643307342. Its totient is φ = 40243643307340.

The previous prime is 40243643307293. The next prime is 40243643307347. The reversal of 40243643307341 is 14370334634204.

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., 21805593765316 + 18438049542025 = 4669646^2 + 4293955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40243643307341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40243643307292 and 40243643307301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40243643307347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121821653670 + 20121821653671.

It is an arithmetic number, because the mean of its divisors is an integer number (20121821653671).

Almost surely, 2^{40243643307341} is an apocalyptic number.

It is an amenable number.

40243643307341 is a deficient number, since it is larger than the sum of its proper divisors (1).

40243643307341 is an equidigital number, since it uses as much as digits as its factorization.

40243643307341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 44.

The spelling of 40243643307341 in words is "forty trillion, two hundred forty-three billion, six hundred forty-three million, three hundred seven thousand, three hundred forty-one".