312224450413 has 2 divisors, whose sum is σ = 312224450414. Its totient is φ = 312224450412.

The previous prime is 312224450327. The next prime is 312224450423. The reversal of 312224450413 is 314054422213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288930975529 + 23293474884 = 537523^2 + 152622^2 .

It is a cyclic number.

It is not a de Polignac number, because 312224450413 - 2¹³ = 312224442221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312224450423) 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, 156112225206 + 156112225207.

It is an arithmetic number, because the mean of its divisors is an integer number (156112225207).

Almost surely, 2^312224450413 is an apocalyptic number.

It is an amenable number.

312224450413 is a deficient number, since it is larger than the sum of its proper divisors (1).

312224450413 is an equidigital number, since it uses as much as digits as its factorization.

312224450413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 312224450413 its reverse (314054422213), we get a palindrome (626278872626).

The spelling of 312224450413 in words is "three hundred twelve billion, two hundred twenty-four million, four hundred fifty thousand, four hundred thirteen".