421243100003024 has 20 divisors (see below), whose sum is σ = 878939929814436. Its totient is φ = 194419892308992.

The previous prime is 421243100002987. The next prime is 421243100003029. The reversal of 421243100003024 is 420300001342124.

It can be written as a sum of positive squares in 2 ways, for example, as 155222694145600 + 266020405857424 = 12458840^2 + 16310132^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 421243100002984 and 421243100003002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421243100003029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1012603605569 + ... + 1012603605984.

Almost surely, 2^{421243100003024} is an apocalyptic number.

It is an amenable number.

421243100003024 is an abundant number, since it is smaller than the sum of its proper divisors (457696829811412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421243100003024 is a wasteful number, since it uses less digits than its factorization.

421243100003024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025207211574 (or 2025207211568 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 421243100003024 its reverse (420300001342124), we get a palindrome (841543101345148).

The spelling of 421243100003024 in words is "four hundred twenty-one trillion, two hundred forty-three billion, one hundred million, three thousand, twenty-four".