421345022353 has 2 divisors, whose sum is σ = 421345022354. Its totient is φ = 421345022352.

The previous prime is 421345022311. The next prime is 421345022369. The reversal of 421345022353 is 353220543124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331553701249 + 89791321104 = 575807^2 + 299652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421345022353 is a prime.

It is not a weakly prime, because it can be changed into another prime (421345022753) 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, 210672511176 + 210672511177.

It is an arithmetic number, because the mean of its divisors is an integer number (210672511177).

Almost surely, 2^421345022353 is an apocalyptic number.

It is an amenable number.

421345022353 is a deficient number, since it is larger than the sum of its proper divisors (1).

421345022353 is an equidigital number, since it uses as much as digits as its factorization.

421345022353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 421345022353 its reverse (353220543124), we get a palindrome (774565565477).

The spelling of 421345022353 in words is "four hundred twenty-one billion, three hundred forty-five million, twenty-two thousand, three hundred fifty-three".