120811223 has 4 divisors (see below), whose sum is σ = 130104408. Its totient is φ = 111518040.

The previous prime is 120811189. The next prime is 120811237. The reversal of 120811223 is 322118021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120811223 - 2¹⁶ = 120745687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120811195 and 120811204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120811283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4646573 + ... + 4646598.

It is an arithmetic number, because the mean of its divisors is an integer number (32526102).

Almost surely, 2^120811223 is an apocalyptic number.

120811223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120811223 is a deficient number, since it is larger than the sum of its proper divisors (9293185).

120811223 is an equidigital number, since it uses as much as digits as its factorization.

120811223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293184.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 120811223 is about 10991.4158778567. The cubic root of 120811223 is about 494.3513907320.

Adding to 120811223 its reverse (322118021), we get a palindrome (442929244).

The spelling of 120811223 in words is "one hundred twenty million, eight hundred eleven thousand, two hundred twenty-three".