11045242021 has 8 divisors (see below), whose sum is σ = 12050237088. Its totient is φ = 10040394000.

The previous prime is 11045242007. The next prime is 11045242037. The reversal of 11045242021 is 12024254011.

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 11045242021 - 2¹¹ = 11045239973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11045241983 and 11045242001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11045242081) 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, 171751 + ... + 227131.

It is an arithmetic number, because the mean of its divisors is an integer number (1506279636).

Almost surely, 2^11045242021 is an apocalyptic number.

11045242021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11045242021 is a deficient number, since it is larger than the sum of its proper divisors (1004995067).

11045242021 is a wasteful number, since it uses less digits than its factorization.

11045242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73523.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 11045242021 its reverse (12024254011), we get a palindrome (23069496032).

The spelling of 11045242021 in words is "eleven billion, forty-five million, two hundred forty-two thousand, twenty-one".