21133553035441 has 8 divisors (see below), whose sum is σ = 26348325862464. Its totient is φ = 16467703663920.

The previous prime is 21133553035373. The next prime is 21133553035453. The reversal of 21133553035441 is 14453035533112.

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 21133553035441 - 2⁷ = 21133553035313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21133553035394 and 21133553035403.

It is not an unprimeable number, because it can be changed into a prime (21133553039441) 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 7 ways as a sum of consecutive naturals, for example, 137230863790 + ... + 137230863943.

It is an arithmetic number, because the mean of its divisors is an integer number (3293540732808).

Almost surely, 2^{21133553035441} is an apocalyptic number.

It is an amenable number.

21133553035441 is a deficient number, since it is larger than the sum of its proper divisors (5214772827023).

21133553035441 is a wasteful number, since it uses less digits than its factorization.

21133553035441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274461727751.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 21133553035441 its reverse (14453035533112), we get a palindrome (35586588568553).

The spelling of 21133553035441 in words is "twenty-one trillion, one hundred thirty-three billion, five hundred fifty-three million, thirty-five thousand, four hundred forty-one".