21011041334201 has 4 divisors (see below), whose sum is σ = 21054905721600. Its totient is φ = 20967176946804.

The previous prime is 21011041334189. The next prime is 21011041334203. The reversal of 21011041334201 is 10243314011012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21011041334201 - 2¹⁸ = 21011041072057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21011041334203) 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 3 ways as a sum of consecutive naturals, for example, 21932192981 + ... + 21932193938.

It is an arithmetic number, because the mean of its divisors is an integer number (5263726430400).

Almost surely, 2^{21011041334201} is an apocalyptic number.

It is an amenable number.

21011041334201 is a deficient number, since it is larger than the sum of its proper divisors (43864387399).

21011041334201 is an equidigital number, since it uses as much as digits as its factorization.

21011041334201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43864387398.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21011041334201 its reverse (10243314011012), we get a palindrome (31254355345213).

The spelling of 21011041334201 in words is "twenty-one trillion, eleven billion, forty-one million, three hundred thirty-four thousand, two hundred one".