402224431313 has 2 divisors, whose sum is σ = 402224431314. Its totient is φ = 402224431312.

The previous prime is 402224431291. The next prime is 402224431351. The reversal of 402224431313 is 313134422204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311121875089 + 91102556224 = 557783^2 + 301832^2 .

It is a cyclic number.

It is not a de Polignac number, because 402224431313 - 2⁶ = 402224431249 is a prime.

It is not a weakly prime, because it can be changed into another prime (402224431393) 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, 201112215656 + 201112215657.

It is an arithmetic number, because the mean of its divisors is an integer number (201112215657).

Almost surely, 2^402224431313 is an apocalyptic number.

It is an amenable number.

402224431313 is a deficient number, since it is larger than the sum of its proper divisors (1).

402224431313 is an equidigital number, since it uses as much as digits as its factorization.

402224431313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 402224431313 its reverse (313134422204), we get a palindrome (715358853517).

The spelling of 402224431313 in words is "four hundred two billion, two hundred twenty-four million, four hundred thirty-one thousand, three hundred thirteen".