11140041021 has 4 divisors (see below), whose sum is σ = 14853388032. Its totient is φ = 7426694012.

The previous prime is 11140041019. The next prime is 11140041047. The reversal of 11140041021 is 12014004111.

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 11140041021 - 2¹ = 11140041019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140041001) 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, 1856673501 + ... + 1856673506.

It is an arithmetic number, because the mean of its divisors is an integer number (3713347008).

Almost surely, 2^11140041021 is an apocalyptic number.

It is an amenable number.

11140041021 is a deficient number, since it is larger than the sum of its proper divisors (3713347011).

11140041021 is an equidigital number, since it uses as much as digits as its factorization.

11140041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713347010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11140041021 its reverse (12014004111), we get a palindrome (23154045132).

The spelling of 11140041021 in words is "eleven billion, one hundred forty million, forty-one thousand, twenty-one".