4233142320021 has 6 divisors (see below), whose sum is σ = 6114538906710. Its totient is φ = 2822094880008.

The previous prime is 4233142320013. The next prime is 4233142320023. The reversal of 4233142320021 is 1200232413324.

4233142320021 is a `hidden beast` number, since 4 + 2 + 3 + 31 + 423 + 200 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2788602747921 + 1444539572100 = 1669911^2 + 1201890^2 .

It is not a de Polignac number, because 4233142320021 - 2³ = 4233142320013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4233142320023) 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, 235174573326 + ... + 235174573343.

It is an arithmetic number, because the mean of its divisors is an integer number (1019089817785).

Almost surely, 2^{4233142320021} is an apocalyptic number.

It is an amenable number.

4233142320021 is a deficient number, since it is larger than the sum of its proper divisors (1881396586689).

4233142320021 is a wasteful number, since it uses less digits than its factorization.

4233142320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470349146675 (or 470349146672 counting only the distinct ones).

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

Adding to 4233142320021 its reverse (1200232413324), we get a palindrome (5433374733345).

The spelling of 4233142320021 in words is "four trillion, two hundred thirty-three billion, one hundred forty-two million, three hundred twenty thousand, twenty-one".