2433234040021 has 4 divisors (see below), whose sum is σ = 2433239610700. Its totient is φ = 2433228469344.

The previous prime is 2433234039851. The next prime is 2433234040043. The reversal of 2433234040021 is 1200404323342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1432461891025 + 1000772148996 = 1196855^2 + 1000386^2 .

It is a cyclic number.

It is not a de Polignac number, because 2433234040021 - 2¹⁹ = 2433233515733 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 (2433234040121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068686 + ... + 3024223.

It is an arithmetic number, because the mean of its divisors is an integer number (608309902675).

Almost surely, 2^{2433234040021} is an apocalyptic number.

It is an amenable number.

2433234040021 is a deficient number, since it is larger than the sum of its proper divisors (5570679).

2433234040021 is an equidigital number, since it uses as much as digits as its factorization.

2433234040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570678.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 2433234040021 its reverse (1200404323342), we get a palindrome (3633638363363).

The spelling of 2433234040021 in words is "two trillion, four hundred thirty-three billion, two hundred thirty-four million, forty thousand, twenty-one".