21088823042841 has 4 divisors (see below), whose sum is σ = 28118430723792. Its totient is φ = 14059215361892.

The previous prime is 21088823042831. The next prime is 21088823042899. The reversal of 21088823042841 is 14824032888012.

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 21088823042841 - 2³⁴ = 21071643173657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21088823042831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3514803840471 + ... + 3514803840476.

It is an arithmetic number, because the mean of its divisors is an integer number (7029607680948).

Almost surely, 2^{21088823042841} is an apocalyptic number.

It is an amenable number.

21088823042841 is a deficient number, since it is larger than the sum of its proper divisors (7029607680951).

21088823042841 is an equidigital number, since it uses as much as digits as its factorization.

21088823042841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029607680950.

The product of its (nonzero) digits is 1572864, while the sum is 51.

The spelling of 21088823042841 in words is "twenty-one trillion, eighty-eight billion, eight hundred twenty-three million, forty-two thousand, eight hundred forty-one".