11434041021 has 16 divisors (see below), whose sum is σ = 16577515136. Its totient is φ = 6968016576.

The previous prime is 11434040993. The next prime is 11434041097. The reversal of 11434041021 is 12014043411.

It is not a de Polignac number, because 11434041021 - 2⁹ = 11434040509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11434040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419190 + ... + 1427223.

It is an arithmetic number, because the mean of its divisors is an integer number (1036094696).

Almost surely, 2^11434041021 is an apocalyptic number.

It is an amenable number.

11434041021 is a deficient number, since it is larger than the sum of its proper divisors (5143474115).

11434041021 is a wasteful number, since it uses less digits than its factorization.

11434041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846532.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11434041021 its reverse (12014043411), we get a palindrome (23448084432).

The spelling of 11434041021 in words is "eleven billion, four hundred thirty-four million, forty-one thousand, twenty-one".