4233423300021 has 6 divisors (see below), whose sum is σ = 6114944766710. Its totient is φ = 2822282200008.

The previous prime is 4233423299999. The next prime is 4233423300049. The reversal of 4233423300021 is 1200033243324.

4233423300021 is a `hidden beast` number, since 4 + 2 + 334 + 2 + 3 + 300 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3854884584996 + 378538715025 = 1963386^2 + 615255^2 .

It is not a de Polignac number, because 4233423300021 - 2⁶ = 4233423299957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4233423300061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235190183326 + ... + 235190183343.

Almost surely, 2^{4233423300021} is an apocalyptic number.

It is an amenable number.

4233423300021 is a deficient number, since it is larger than the sum of its proper divisors (1881521466689).

4233423300021 is a wasteful number, since it uses less digits than its factorization.

4233423300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470380366675 (or 470380366672 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 4233423300021 its reverse (1200033243324), we get a palindrome (5433456543345).

The spelling of 4233423300021 in words is "four trillion, two hundred thirty-three billion, four hundred twenty-three million, three hundred thousand, twenty-one".