1200230320 has 20 divisors (see below), whose sum is σ = 2790535680. Its totient is φ = 480092096.

The previous prime is 1200230281. The next prime is 1200230347. The reversal of 1200230320 is 230320021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1200230320.

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, 7501360 + ... + 7501519.

It is an arithmetic number, because the mean of its divisors is an integer number (139526784).

Almost surely, 2^1200230320 is an apocalyptic number.

1200230320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200230320 is an abundant number, since it is smaller than the sum of its proper divisors (1590305360).

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

1200230320 is a wasteful number, since it uses less digits than its factorization.

1200230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15002892 (or 15002886 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1200230320 is about 34644.3403747279. The cubic root of 1200230320 is about 1062.7265513672.

Adding to 1200230320 its reverse (230320021), we get a palindrome (1430550341).

The spelling of 1200230320 in words is "one billion, two hundred million, two hundred thirty thousand, three hundred twenty".