333242431021 has 4 divisors (see below), whose sum is σ = 333244428700. Its totient is φ = 333240433344.

The previous prime is 333242431007. The next prime is 333242431037. The reversal of 333242431021 is 120134242333.

It is a happy number.

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 282583675396 + 50658755625 = 531586^2 + 225075^2 .

It is a cyclic number.

It is not a de Polignac number, because 333242431021 - 2²¹ = 333240333869 is a prime.

It is a super-2 number, since 2×333242431021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333242431091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723276 + ... + 1090693.

It is an arithmetic number, because the mean of its divisors is an integer number (83311107175).

Almost surely, 2^333242431021 is an apocalyptic number.

It is an amenable number.

333242431021 is a deficient number, since it is larger than the sum of its proper divisors (1997679).

333242431021 is a wasteful number, since it uses less digits than its factorization.

333242431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997678.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 333242431021 its reverse (120134242333), we get a palindrome (453376673354).

The spelling of 333242431021 in words is "three hundred thirty-three billion, two hundred forty-two million, four hundred thirty-one thousand, twenty-one".