421343331014111 has 4 divisors (see below), whose sum is σ = 459647270197224. Its totient is φ = 383039391831000.

The previous prime is 421343331014093. The next prime is 421343331014117. The reversal of 421343331014111 is 111410133343124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421343331014111 is a prime.

It is a super-2 number, since 2×421343331014111² (a number of 30 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 (421343331014117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19151969591540 + ... + 19151969591561.

It is an arithmetic number, because the mean of its divisors is an integer number (114911817549306).

Almost surely, 2^{421343331014111} is an apocalyptic number.

421343331014111 is a deficient number, since it is larger than the sum of its proper divisors (38303939183113).

421343331014111 is a wasteful number, since it uses less digits than its factorization.

421343331014111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38303939183112.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 421343331014111 its reverse (111410133343124), we get a palindrome (532753464357235).

The spelling of 421343331014111 in words is "four hundred twenty-one trillion, three hundred forty-three billion, three hundred thirty-one million, fourteen thousand, one hundred eleven".