40310340073 has 2 divisors, whose sum is σ = 40310340074. Its totient is φ = 40310340072.

The previous prime is 40310339969. The next prime is 40310340151. The reversal of 40310340073 is 37004301304.

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., 39915244944 + 395095129 = 199788^2 + 19877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40310340073 is a prime.

It is not a weakly prime, because it can be changed into another prime (40310340173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20155170036 + 20155170037.

It is an arithmetic number, because the mean of its divisors is an integer number (20155170037).

Almost surely, 2^40310340073 is an apocalyptic number.

It is an amenable number.

40310340073 is a deficient number, since it is larger than the sum of its proper divisors (1).

40310340073 is an equidigital number, since it uses as much as digits as its factorization.

40310340073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 40310340073 its reverse (37004301304), we get a palindrome (77314641377).

The spelling of 40310340073 in words is "forty billion, three hundred ten million, three hundred forty thousand, seventy-three".