421344441301 has 24 divisors (see below), whose sum is σ = 506661089280. Its totient is φ = 349008458400.

The previous prime is 421344441289. The next prime is 421344441317. The reversal of 421344441301 is 103144443124.

It is not a de Polignac number, because 421344441301 - 2¹⁹ = 421343917013 is a prime.

It is a super-2 number, since 2×421344441301² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421344441101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 881356 + ... + 1272586.

It is an arithmetic number, because the mean of its divisors is an integer number (21110878720).

Almost surely, 2^421344441301 is an apocalyptic number.

It is an amenable number.

421344441301 is a deficient number, since it is larger than the sum of its proper divisors (85316647979).

421344441301 is a wasteful number, since it uses less digits than its factorization.

421344441301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391985 (or 391978 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 421344441301 its reverse (103144443124), we get a palindrome (524488884425).

The spelling of 421344441301 in words is "four hundred twenty-one billion, three hundred forty-four million, four hundred forty-one thousand, three hundred one".