11040424021 has 8 divisors (see below), whose sum is σ = 12324194784. Its totient is φ = 9803335920.

The previous prime is 11040424009. The next prime is 11040424027. The reversal of 11040424021 is 12042404011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11040424021 - 2⁷ = 11040423893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11040424021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040424027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11670166 + ... + 11671111.

It is an arithmetic number, because the mean of its divisors is an integer number (1540524348).

Almost surely, 2^11040424021 is an apocalyptic number.

11040424021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11040424021 is a deficient number, since it is larger than the sum of its proper divisors (1283770763).

11040424021 is a wasteful number, since it uses less digits than its factorization.

11040424021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23341331.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 11040424021 its reverse (12042404011), we get a palindrome (23082828032).

The spelling of 11040424021 in words is "eleven billion, forty million, four hundred twenty-four thousand, twenty-one".