224313440321 has 2 divisors, whose sum is σ = 224313440322. Its totient is φ = 224313440320.

The previous prime is 224313440291. The next prime is 224313440347. The reversal of 224313440321 is 123044313422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206628430096 + 17685010225 = 454564^2 + 132985^2 .

It is a cyclic number.

It is not a de Polignac number, because 224313440321 - 2²² = 224309246017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (224313440521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112156720160 + 112156720161.

It is an arithmetic number, because the mean of its divisors is an integer number (112156720161).

Almost surely, 2^224313440321 is an apocalyptic number.

It is an amenable number.

224313440321 is a deficient number, since it is larger than the sum of its proper divisors (1).

224313440321 is an equidigital number, since it uses as much as digits as its factorization.

224313440321 is an evil number, because the sum of its binary digits is even.

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

Adding to 224313440321 its reverse (123044313422), we get a palindrome (347357753743).

The spelling of 224313440321 in words is "two hundred twenty-four billion, three hundred thirteen million, four hundred forty thousand, three hundred twenty-one".