21002114041 has 16 divisors (see below), whose sum is σ = 23012121600. Its totient is φ = 19078633728.

The previous prime is 21002114027. The next prime is 21002114053. The reversal of 21002114041 is 14041120012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21002114041 - 2¹¹ = 21002111993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21002117041) 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, 2045266 + ... + 2055508.

It is an arithmetic number, because the mean of its divisors is an integer number (1438257600).

Almost surely, 2^21002114041 is an apocalyptic number.

It is an amenable number.

21002114041 is a deficient number, since it is larger than the sum of its proper divisors (2010007559).

21002114041 is a wasteful number, since it uses less digits than its factorization.

21002114041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14448.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21002114041 its reverse (14041120012), we get a palindrome (35043234053).

The spelling of 21002114041 in words is "twenty-one billion, two million, one hundred fourteen thousand, forty-one".