11123332021 has 8 divisors (see below), whose sum is σ = 11398968000. Its totient is φ = 10847902560.

The previous prime is 11123332007. The next prime is 11123332039. The reversal of 11123332021 is 12023332111.

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 11123332021 - 2⁹ = 11123331509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123332021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123332421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60400 + ... + 160918.

It is an arithmetic number, because the mean of its divisors is an integer number (1424871000).

Almost surely, 2^11123332021 is an apocalyptic number.

It is an amenable number.

11123332021 is a deficient number, since it is larger than the sum of its proper divisors (275635979).

11123332021 is a wasteful number, since it uses less digits than its factorization.

11123332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103259.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11123332021 its reverse (12023332111), we get a palindrome (23146664132).

The spelling of 11123332021 in words is "eleven billion, one hundred twenty-three million, three hundred thirty-two thousand, twenty-one".