421352311 has 2 divisors, whose sum is σ = 421352312. Its totient is φ = 421352310.

The previous prime is 421352287. The next prime is 421352317. The reversal of 421352311 is 113253124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421352311 - 2¹¹ = 421350263 is a prime.

It is equal to p_22412614 and since 421352311 and 22412614 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421352317) 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, 210676155 + 210676156.

It is an arithmetic number, because the mean of its divisors is an integer number (210676156).

Almost surely, 2^421352311 is an apocalyptic number.

421352311 is a deficient number, since it is larger than the sum of its proper divisors (1).

421352311 is an equidigital number, since it uses as much as digits as its factorization.

421352311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 421352311 is about 20526.8680270518. The cubic root of 421352311 is about 749.6901303624.

The spelling of 421352311 in words is "four hundred twenty-one million, three hundred fifty-two thousand, three hundred eleven".