1120242223 has 4 divisors (see below), whose sum is σ = 1179202360. Its totient is φ = 1061282088.

The previous prime is 1120242203. The next prime is 1120242239. The reversal of 1120242223 is 3222420211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222420211 = 197 ⋅16357463.

It is a de Polignac number, because none of the positive numbers 2^k-1120242223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 58960117 = 1120242223 / (1 + 1 + 2 + 0 + 2 + 4 + 2 + 2 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120242223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120242203) 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, 29480040 + ... + 29480077.

It is an arithmetic number, because the mean of its divisors is an integer number (294800590).

Almost surely, 2^1120242223 is an apocalyptic number.

1120242223 is a deficient number, since it is larger than the sum of its proper divisors (58960137).

1120242223 is an equidigital number, since it uses as much as digits as its factorization.

1120242223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58960136.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1120242223 is about 33470.0197639619. The cubic root of 1120242223 is about 1038.5736805392.

Adding to 1120242223 its reverse (3222420211), we get a palindrome (4342662434).

The spelling of 1120242223 in words is "one billion, one hundred twenty million, two hundred forty-two thousand, two hundred twenty-three".