21202323133134 has 32 divisors (see below), whose sum is σ = 49818045965184. Its totient is φ = 5930719757280.

The previous prime is 21202323133109. The next prime is 21202323133141. The reversal of 21202323133134 is 43133132320212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12355665304 + ... + 12355667019.

It is an arithmetic number, because the mean of its divisors is an integer number (1556813936412).

Almost surely, 2^{21202323133134} is an apocalyptic number.

21202323133134 is an abundant number, since it is smaller than the sum of its proper divisors (28615722832050).

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

21202323133134 is a wasteful number, since it uses less digits than its factorization.

21202323133134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24711332352.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 21202323133134 its reverse (43133132320212), we get a palindrome (64335455453346).

The spelling of 21202323133134 in words is "twenty-one trillion, two hundred two billion, three hundred twenty-three million, one hundred thirty-three thousand, one hundred thirty-four".