1120323220 has 24 divisors (see below), whose sum is σ = 2476504800. Its totient is φ = 424543392.

The previous prime is 1120323199. The next prime is 1120323223. The reversal of 1120323220 is 223230211.

It is a junction number, because it is equal to n+sod(n) for n = 1120323194 and 1120323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120323223) 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, 1473730 + ... + 1474489.

It is an arithmetic number, because the mean of its divisors is an integer number (103187700).

Almost surely, 2^1120323220 is an apocalyptic number.

1120323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120323220 is an abundant number, since it is smaller than the sum of its proper divisors (1356181580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120323220 is a wasteful number, since it uses less digits than its factorization.

1120323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948247 (or 2948245 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1120323220 is about 33471.2297354011. The cubic root of 1120323220 is about 1038.5987106393.

Adding to 1120323220 its reverse (223230211), we get a palindrome (1343553431).

The spelling of 1120323220 in words is "one billion, one hundred twenty million, three hundred twenty-three thousand, two hundred twenty".