421332231204 has 30 divisors (see below), whose sum is σ = 1101445679334. Its totient is φ = 140444076960.

The previous prime is 421332231193. The next prime is 421332231211. The reversal of 421332231204 is 402132233124.

421332231204 is a `hidden beast` number, since 4 + 21 + 3 + 322 + 312 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 312590573604 + 108741657600 = 559098^2 + 329760^2 .

It is a super-2 number, since 2×421332231204² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 650203737 + ... + 650204384.

Almost surely, 2^421332231204 is an apocalyptic number.

It is an amenable number.

421332231204 is an abundant number, since it is smaller than the sum of its proper divisors (680113448130).

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

421332231204 is a wasteful number, since it uses less digits than its factorization.

421332231204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300408137 (or 1300408126 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 421332231204 its reverse (402132233124), we get a palindrome (823464464328).

The spelling of 421332231204 in words is "four hundred twenty-one billion, three hundred thirty-two million, two hundred thirty-one thousand, two hundred four".