1200310120 has 16 divisors (see below), whose sum is σ = 2700697860. Its totient is φ = 480124032.

The previous prime is 1200310099. The next prime is 1200310151. The reversal of 1200310120 is 210130021.

It can be written as a sum of positive squares in 2 ways, for example, as 1198959876 + 1350244 = 34626^2 + 1162^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1200310097 and 1200310106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15003837 + ... + 15003916.

Almost surely, 2^1200310120 is an apocalyptic number.

1200310120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200310120 is an abundant number, since it is smaller than the sum of its proper divisors (1500387740).

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

1200310120 is a wasteful number, since it uses less digits than its factorization.

1200310120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007764 (or 30007760 counting only the distinct ones).

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

The square root of 1200310120 is about 34645.4920588523. The cubic root of 1200310120 is about 1062.7501034300.

Adding to 1200310120 its reverse (210130021), we get a palindrome (1410440141).

The spelling of 1200310120 in words is "one billion, two hundred million, three hundred ten thousand, one hundred twenty".