21141332203242 has 8 divisors (see below), whose sum is σ = 42282664406496. Its totient is φ = 7047110734412.

The previous prime is 21141332203213. The next prime is 21141332203247. The reversal of 21141332203242 is 24230223314112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

21141332203242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21141332203247) 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, 1761777683598 + ... + 1761777683609.

It is an arithmetic number, because the mean of its divisors is an integer number (5285333050812).

Almost surely, 2^{21141332203242} is an apocalyptic number.

21141332203242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141332203242 is a wasteful number, since it uses less digits than its factorization.

21141332203242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523555367212.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 21141332203242 its reverse (24230223314112), we get a palindrome (45371555517354).

The spelling of 21141332203242 in words is "twenty-one trillion, one hundred forty-one billion, three hundred thirty-two million, two hundred three thousand, two hundred forty-two".