421101305555044 has 24 divisors (see below), whose sum is σ = 756506104720128. Its totient is φ = 205003127016960.

The previous prime is 421101305555027. The next prime is 421101305555111. The reversal of 421101305555044 is 440555503101124.

It is a junction number, because it is equal to n+sod(n) for n = 421101305554988 and 421101305555006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5802814912 + ... + 5802887479.

It is an arithmetic number, because the mean of its divisors is an integer number (31521087696672).

Almost surely, 2^{421101305555044} is an apocalyptic number.

It is an amenable number.

421101305555044 is a deficient number, since it is larger than the sum of its proper divisors (335404799165084).

421101305555044 is a wasteful number, since it uses less digits than its factorization.

421101305555044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11605702635 (or 11605702633 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 421101305555044 its reverse (440555503101124), we get a palindrome (861656808656168).

The spelling of 421101305555044 in words is "four hundred twenty-one trillion, one hundred one billion, three hundred five million, five hundred fifty-five thousand, forty-four".