40324230281 has 2 divisors, whose sum is σ = 40324230282. Its totient is φ = 40324230280.

The previous prime is 40324230229. The next prime is 40324230379. The reversal of 40324230281 is 18203242304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39539334025 + 784896256 = 198845^2 + 28016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40324230281 is a prime.

It is a super-2 number, since 2×40324230281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40324232281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20162115140 + 20162115141.

It is an arithmetic number, because the mean of its divisors is an integer number (20162115141).

Almost surely, 2^40324230281 is an apocalyptic number.

It is an amenable number.

40324230281 is a deficient number, since it is larger than the sum of its proper divisors (1).

40324230281 is an equidigital number, since it uses as much as digits as its factorization.

40324230281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 40324230281 its reverse (18203242304), we get a palindrome (58527472585).

The spelling of 40324230281 in words is "forty billion, three hundred twenty-four million, two hundred thirty thousand, two hundred eighty-one".