343033421453 has 2 divisors, whose sum is σ = 343033421454. Its totient is φ = 343033421452.

The previous prime is 343033421417. The next prime is 343033421473. The reversal of 343033421453 is 354124330343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263191572484 + 79841848969 = 513022^2 + 282563^2 .

It is a cyclic number.

It is not a de Polignac number, because 343033421453 - 2⁶ = 343033421389 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 (343033421473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171516710726 + 171516710727.

It is an arithmetic number, because the mean of its divisors is an integer number (171516710727).

Almost surely, 2^343033421453 is an apocalyptic number.

It is an amenable number.

343033421453 is a deficient number, since it is larger than the sum of its proper divisors (1).

343033421453 is an equidigital number, since it uses as much as digits as its factorization.

343033421453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 35.

Adding to 343033421453 its reverse (354124330343), we get a palindrome (697157751796).

The spelling of 343033421453 in words is "three hundred forty-three billion, thirty-three million, four hundred twenty-one thousand, four hundred fifty-three".