11230021 has 8 divisors (see below), whose sum is σ = 12333888. Its totient is φ = 10140000.

The previous prime is 11229973. The next prime is 11230031. The reversal of 11230021 is 12003211.

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 11230021 - 2⁹ = 11229509 is a prime.

It is a super-2 number, since 2×11230021² = 252226743320882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230031) 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, 1720 + ... + 5041.

It is an arithmetic number, because the mean of its divisors is an integer number (1541736).

Almost surely, 2^11230021 is an apocalyptic number.

11230021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11230021 is a deficient number, since it is larger than the sum of its proper divisors (1103867).

11230021 is a wasteful number, since it uses less digits than its factorization.

11230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11230021 is about 3351.1223493033. The cubic root of 11230021 is about 223.9375157882.

Adding to 11230021 its reverse (12003211), we get a palindrome (23233232).

It can be divided in two parts, 11 and 230021, that added together give a palindrome (230032).

The spelling of 11230021 in words is "eleven million, two hundred thirty thousand, twenty-one".