40115230213 has 2 divisors, whose sum is σ = 40115230214. Its totient is φ = 40115230212.

The previous prime is 40115230201. The next prime is 40115230223. The reversal of 40115230213 is 31203251104.

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., 37342470564 + 2772759649 = 193242^2 + 52657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40115230213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40115230223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057615106 + 20057615107.

It is an arithmetic number, because the mean of its divisors is an integer number (20057615107).

Almost surely, 2^40115230213 is an apocalyptic number.

It is an amenable number.

40115230213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115230213 is an equidigital number, since it uses as much as digits as its factorization.

40115230213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 40115230213 its reverse (31203251104), we get a palindrome (71318481317).

The spelling of 40115230213 in words is "forty billion, one hundred fifteen million, two hundred thirty thousand, two hundred thirteen".