21004144101134 has 8 divisors (see below), whose sum is σ = 33359522984208. Its totient is φ = 9884303106400.

The previous prime is 21004144101091. The next prime is 21004144101191. The reversal of 21004144101134 is 43110144140012.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 308884472042 + ... + 308884472109.

It is an arithmetic number, because the mean of its divisors is an integer number (4169940373026).

Almost surely, 2^{21004144101134} is an apocalyptic number.

21004144101134 is a deficient number, since it is larger than the sum of its proper divisors (12355378883074).

21004144101134 is a wasteful number, since it uses less digits than its factorization.

21004144101134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617768944170.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21004144101134 its reverse (43110144140012), we get a palindrome (64114288241146).

The spelling of 21004144101134 in words is "twenty-one trillion, four billion, one hundred forty-four million, one hundred one thousand, one hundred thirty-four".