421340311111 has 8 divisors (see below), whose sum is σ = 451137677760. Its totient is φ = 392099904768.

The previous prime is 421340311087. The next prime is 421340311121. The reversal of 421340311111 is 111113043124.

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 421340311111 - 2⁵ = 421340311079 is a prime.

It is a super-2 number, since 2×421340311111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421340311121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139238511 + ... + 139241536.

It is an arithmetic number, because the mean of its divisors is an integer number (56392209720).

Almost surely, 2^421340311111 is an apocalyptic number.

421340311111 is a deficient number, since it is larger than the sum of its proper divisors (29797366649).

421340311111 is a wasteful number, since it uses less digits than its factorization.

421340311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278480153.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 421340311111 its reverse (111113043124), we get a palindrome (532453354235).

The spelling of 421340311111 in words is "four hundred twenty-one billion, three hundred forty million, three hundred eleven thousand, one hundred eleven".