40013245213 has 2 divisors, whose sum is σ = 40013245214. Its totient is φ = 40013245212.

The previous prime is 40013245201. The next prime is 40013245243. The reversal of 40013245213 is 31254231004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34233140484 + 5780104729 = 185022^2 + 76027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40013245213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40013245243) 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, 20006622606 + 20006622607.

It is an arithmetic number, because the mean of its divisors is an integer number (20006622607).

Almost surely, 2^40013245213 is an apocalyptic number.

It is an amenable number.

40013245213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40013245213 is an equidigital number, since it uses as much as digits as its factorization.

40013245213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40013245213 its reverse (31254231004), we get a palindrome (71267476217).

The spelling of 40013245213 in words is "forty billion, thirteen million, two hundred forty-five thousand, two hundred thirteen".