11220123 has 8 divisors (see below), whose sum is σ = 14976000. Its totient is φ = 7472168.

The previous prime is 11220107. The next prime is 11220137. The reversal of 11220123 is 32102211.

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 11220123 - 2⁴ = 11220107 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11220099 and 11220108.

It is not an unprimeable number, because it can be changed into a prime (11220103) 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, 3478 + ... + 5876.

It is an arithmetic number, because the mean of its divisors is an integer number (1872000).

Almost surely, 2^11220123 is an apocalyptic number.

11220123 is a deficient number, since it is larger than the sum of its proper divisors (3755877).

11220123 is a wasteful number, since it uses less digits than its factorization.

11220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11220123 is about 3349.6452050926. The cubic root of 11220123 is about 223.8717045412.

Adding to 11220123 its reverse (32102211), we get a palindrome (43322334).

The spelling of 11220123 in words is "eleven million, two hundred twenty thousand, one hundred twenty-three".