421211241323 has 2 divisors, whose sum is σ = 421211241324. Its totient is φ = 421211241322.

The previous prime is 421211241301. The next prime is 421211241377. The reversal of 421211241323 is 323142112124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421211241323 - 2¹⁰ = 421211240299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421211241292 and 421211241301.

It is not a weakly prime, because it can be changed into another prime (421211241383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210605620661 + 210605620662.

It is an arithmetic number, because the mean of its divisors is an integer number (210605620662).

Almost surely, 2^421211241323 is an apocalyptic number.

421211241323 is a deficient number, since it is larger than the sum of its proper divisors (1).

421211241323 is an equidigital number, since it uses as much as digits as its factorization.

421211241323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 26.

Adding to 421211241323 its reverse (323142112124), we get a palindrome (744353353447).

The spelling of 421211241323 in words is "four hundred twenty-one billion, two hundred eleven million, two hundred forty-one thousand, three hundred twenty-three".