11011133021 has 8 divisors (see below), whose sum is σ = 12699603840. Its totient is φ = 9351525168.

The previous prime is 11011133011. The next prime is 11011133027. The reversal of 11011133021 is 12033111011.

It is a happy number.

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 11011133021 - 2¹⁴ = 11011116637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11011132987 and 11011133005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011133027) 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, 7214921 + ... + 7216446.

It is an arithmetic number, because the mean of its divisors is an integer number (1587450480).

Almost surely, 2^11011133021 is an apocalyptic number.

It is an amenable number.

11011133021 is a deficient number, since it is larger than the sum of its proper divisors (1688470819).

11011133021 is a wasteful number, since it uses less digits than its factorization.

11011133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14431483.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11011133021 its reverse (12033111011), we get a palindrome (23044244032).

The spelling of 11011133021 in words is "eleven billion, eleven million, one hundred thirty-three thousand, twenty-one".