421204545133125 has 80 divisors (see below), whose sum is σ = 756313555890816. Its totient is φ = 207212067360000.

The previous prime is 421204545133123. The next prime is 421204545133157. The reversal of 421204545133125 is 521331545402124.

It is not a de Polignac number, because 421204545133125 - 2¹ = 421204545133123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421204545133123) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 27405472 + ... + 39918278.

Almost surely, 2^{421204545133125} is an apocalyptic number.

It is an amenable number.

421204545133125 is a deficient number, since it is larger than the sum of its proper divisors (335109010757691).

421204545133125 is a wasteful number, since it uses less digits than its factorization.

421204545133125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12514224 (or 12514209 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 421204545133125 in words is "four hundred twenty-one trillion, two hundred four billion, five hundred forty-five million, one hundred thirty-three thousand, one hundred twenty-five".