421403343304124 has 48 divisors (see below), whose sum is σ = 777220375680000. Its totient is φ = 199367699046912.

The previous prime is 421403343304123. The next prime is 421403343304253.

421403343304124 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421403343304123) 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 15 ways as a sum of consecutive naturals, for example, 205568687 + ... + 207608505.

It is an arithmetic number, because the mean of its divisors is an integer number (16192091160000).

Almost surely, 2^{421403343304124} is an apocalyptic number.

It is an amenable number.

421403343304124 is a deficient number, since it is larger than the sum of its proper divisors (355817032375876).

421403343304124 is a wasteful number, since it uses less digits than its factorization.

421403343304124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043170 (or 2043168 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

The spelling of 421403343304124 in words is "four hundred twenty-one trillion, four hundred three billion, three hundred forty-three million, three hundred four thousand, one hundred twenty-four".