21442553033133 has 8 divisors (see below), whose sum is σ = 28591559311168. Its totient is φ = 14294291055264.

The previous prime is 21442553033113. The next prime is 21442553033141. The reversal of 21442553033133 is 33133035524412.

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

It is not a de Polignac number, because 21442553033133 - 2²⁹ = 21442016162221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21442553033091 and 21442553033100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442553033113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186007816 + ... + 186123057.

It is an arithmetic number, because the mean of its divisors is an integer number (3573944913896).

Almost surely, 2^{21442553033133} is an apocalyptic number.

It is an amenable number.

21442553033133 is a deficient number, since it is larger than the sum of its proper divisors (7149006278035).

21442553033133 is a wasteful number, since it uses less digits than its factorization.

21442553033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372150083.

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 21442553033133 its reverse (33133035524412), we get a palindrome (54575588557545).

The spelling of 21442553033133 in words is "twenty-one trillion, four hundred forty-two billion, five hundred fifty-three million, thirty-three thousand, one hundred thirty-three".