40104423013 has 2 divisors, whose sum is σ = 40104423014. Its totient is φ = 40104423012.

The previous prime is 40104422989. The next prime is 40104423049. The reversal of 40104423013 is 31032440104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31496665729 + 8607757284 = 177473^2 + 92778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40104423013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40104423113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052211506 + 20052211507.

It is an arithmetic number, because the mean of its divisors is an integer number (20052211507).

Almost surely, 2^40104423013 is an apocalyptic number.

It is an amenable number.

40104423013 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104423013 is an equidigital number, since it uses as much as digits as its factorization.

40104423013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40104423013 its reverse (31032440104), we get a palindrome (71136863117).

The spelling of 40104423013 in words is "forty billion, one hundred four million, four hundred twenty-three thousand, thirteen".