10440421213 has 2 divisors, whose sum is σ = 10440421214. Its totient is φ = 10440421212.

The previous prime is 10440421183. The next prime is 10440421289. The reversal of 10440421213 is 31212404401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5736244644 + 4704176569 = 75738^2 + 68587^2 .

It is an emirp because it is prime and its reverse (31212404401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10440421213 - 2²⁹ = 9903550301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10440421613) 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, 5220210606 + 5220210607.

It is an arithmetic number, because the mean of its divisors is an integer number (5220210607).

Almost surely, 2^10440421213 is an apocalyptic number.

It is an amenable number.

10440421213 is a deficient number, since it is larger than the sum of its proper divisors (1).

10440421213 is an equidigital number, since it uses as much as digits as its factorization.

10440421213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10440421213 its reverse (31212404401), we get a palindrome (41652825614).

The spelling of 10440421213 in words is "ten billion, four hundred forty million, four hundred twenty-one thousand, two hundred thirteen".