421440331111103 has 16 divisors (see below), whose sum is σ = 436033340926464. Its totient is φ = 407021232683520.

The previous prime is 421440331111097. The next prime is 421440331111159. The reversal of 421440331111103 is 301111133044124.

It is a cyclic number.

It is not a de Polignac number, because 421440331111103 - 2¹⁴ = 421440331094719 is a prime.

It is a super-2 number, since 2×421440331111103² (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 (421440331113103) 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 15 ways as a sum of consecutive naturals, for example, 31453343 + ... + 42804128.

It is an arithmetic number, because the mean of its divisors is an integer number (27252083807904).

Almost surely, 2^{421440331111103} is an apocalyptic number.

421440331111103 is a deficient number, since it is larger than the sum of its proper divisors (14593009815361).

421440331111103 is a wasteful number, since it uses less digits than its factorization.

421440331111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74258642.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 421440331111103 its reverse (301111133044124), we get a palindrome (722551464155227).

The spelling of 421440331111103 in words is "four hundred twenty-one trillion, four hundred forty billion, three hundred thirty-one million, one hundred eleven thousand, one hundred three".