21004144101133 has 8 divisors (see below), whose sum is σ = 21917468116800. Its totient is φ = 20090828448768.

The previous prime is 21004144101091. The next prime is 21004144101191. The reversal of 21004144101133 is 33110144140012.

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

It is a cyclic number.

It is not a de Polignac number, because 21004144101133 - 2²⁵ = 21004110546701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21004144101098 and 21004144101107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21004144131133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3341658 + ... + 7292116.

It is an arithmetic number, because the mean of its divisors is an integer number (2739683514600).

Almost surely, 2^{21004144101133} is an apocalyptic number.

21004144101133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21004144101133 is a deficient number, since it is larger than the sum of its proper divisors (913324015667).

21004144101133 is a wasteful number, since it uses less digits than its factorization.

21004144101133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181651.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 21004144101133 its reverse (33110144140012), we get a palindrome (54114288241145).

The spelling of 21004144101133 in words is "twenty-one trillion, four billion, one hundred forty-four million, one hundred one thousand, one hundred thirty-three".