421342244111 has 4 divisors (see below), whose sum is σ = 422179903152. Its totient is φ = 420504585072.

The previous prime is 421342244101. The next prime is 421342244143. The reversal of 421342244111 is 111442243124.

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

It is a cyclic number.

It is not a de Polignac number, because 421342244111 - 2²² = 421338049807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421342244101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418828766 + ... + 418829771.

It is an arithmetic number, because the mean of its divisors is an integer number (105544975788).

Almost surely, 2^421342244111 is an apocalyptic number.

421342244111 is a deficient number, since it is larger than the sum of its proper divisors (837659041).

421342244111 is an equidigital number, since it uses as much as digits as its factorization.

421342244111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837659040.

The product of its digits is 6144, while the sum is 29.

Adding to 421342244111 its reverse (111442243124), we get a palindrome (532784487235).

The spelling of 421342244111 in words is "four hundred twenty-one billion, three hundred forty-two million, two hundred forty-four thousand, one hundred eleven".