344123021453 has 2 divisors, whose sum is σ = 344123021454. Its totient is φ = 344123021452.

The previous prime is 344123021423. The next prime is 344123021479. The reversal of 344123021453 is 354120321443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342443824969 + 1679196484 = 585187^2 + 40978^2 .

It is a cyclic number.

It is not a de Polignac number, because 344123021453 - 2¹⁰ = 344123020429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344123021413) 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, 172061510726 + 172061510727.

It is an arithmetic number, because the mean of its divisors is an integer number (172061510727).

Almost surely, 2^344123021453 is an apocalyptic number.

It is an amenable number.

344123021453 is a deficient number, since it is larger than the sum of its proper divisors (1).

344123021453 is an equidigital number, since it uses as much as digits as its factorization.

344123021453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 344123021453 its reverse (354120321443), we get a palindrome (698243342896).

The spelling of 344123021453 in words is "three hundred forty-four billion, one hundred twenty-three million, twenty-one thousand, four hundred fifty-three".