4233421010421 has 12 divisors (see below), whose sum is σ = 6115013850348. Its totient is φ = 2822247262464.

The previous prime is 4233421010407. The next prime is 4233421010473. The reversal of 4233421010421 is 1240101243324.

4233421010421 is a `hidden beast` number, since 4 + 23 + 3 + 4 + 210 + 1 + 0 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4025520576900 + 207900433521 = 2006370^2 + 455961^2 .

It is not a de Polignac number, because 4233421010421 - 2⁷ = 4233421010293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4233421010521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1969230 + ... + 3513503.

It is an arithmetic number, because the mean of its divisors is an integer number (509584487529).

Almost surely, 2^{4233421010421} is an apocalyptic number.

It is an amenable number.

4233421010421 is a deficient number, since it is larger than the sum of its proper divisors (1881592839927).

4233421010421 is a wasteful number, since it uses less digits than its factorization.

4233421010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568532 (or 5568529 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 4233421010421 its reverse (1240101243324), we get a palindrome (5473522253745).

The spelling of 4233421010421 in words is "four trillion, two hundred thirty-three billion, four hundred twenty-one million, ten thousand, four hundred twenty-one".