11080021 has 8 divisors (see below), whose sum is σ = 11884320. Its totient is φ = 10297872.

The previous prime is 11080009. The next prime is 11080033. The reversal of 11080021 is 12008011.

It is an interprime number because it is at equal distance from previous prime (11080009) and next prime (11080033).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11080021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11079983 and 11080010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11080061) 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, 4495 + ... + 6508.

It is an arithmetic number, because the mean of its divisors is an integer number (1485540).

Almost surely, 2^11080021 is an apocalyptic number.

It is an amenable number.

11080021 is a deficient number, since it is larger than the sum of its proper divisors (804299).

11080021 is a wasteful number, since it uses less digits than its factorization.

11080021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 11080021 is about 3328.6665498364. Note that the first 3 decimals coincide. The cubic root of 11080021 is about 222.9359948226.

Adding to 11080021 its reverse (12008011), we get a palindrome (23088032).

The spelling of 11080021 in words is "eleven million, eighty thousand, twenty-one".