21042034011041 has 16 divisors (see below), whose sum is σ = 21118913136000. Its totient is φ = 20965318702848.

The previous prime is 21042034011007. The next prime is 21042034011059. The reversal of 21042034011041 is 14011043024012.

It is a cyclic number.

It is not a de Polignac number, because 21042034011041 - 2¹⁰ = 21042034010017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21042034010998 and 21042034011016.

It is not an unprimeable number, because it can be changed into a prime (21042034011641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273029065 + ... + 1273045593.

It is an arithmetic number, because the mean of its divisors is an integer number (1319932071000).

Almost surely, 2^{21042034011041} is an apocalyptic number.

It is an amenable number.

21042034011041 is a deficient number, since it is larger than the sum of its proper divisors (76879124959).

21042034011041 is a wasteful number, since it uses less digits than its factorization.

21042034011041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21208.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21042034011041 its reverse (14011043024012), we get a palindrome (35053077035053).

The spelling of 21042034011041 in words is "twenty-one trillion, forty-two billion, thirty-four million, eleven thousand, forty-one".