421123321211 has 8 divisors (see below), whose sum is σ = 421591903920. Its totient is φ = 420654848992.

The previous prime is 421123321189. The next prime is 421123321243. The reversal of 421123321211 is 112123321124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421123321211 - 2⁶ = 421123321147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421123341211) 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 in 7 ways as a sum of consecutive naturals, for example, 9324761 + ... + 9369813.

It is an arithmetic number, because the mean of its divisors is an integer number (52698987990).

Almost surely, 2^421123321211 is an apocalyptic number.

421123321211 is a deficient number, since it is larger than the sum of its proper divisors (468582709).

421123321211 is a wasteful number, since it uses less digits than its factorization.

421123321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55245.

The product of its digits is 576, while the sum is 23.

Adding to 421123321211 its reverse (112123321124), we get a palindrome (533246642335).

The spelling of 421123321211 in words is "four hundred twenty-one billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred eleven".