1200310320 has 120 divisors (see below), whose sum is σ = 4090081968. Its totient is φ = 290977280.

The previous prime is 1200310259. The next prime is 1200310333. The reversal of 1200310320 is 230130021.

It is a happy number.

1200310320 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1200310296 and 1200310305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8374 + ... + 49706.

Almost surely, 2^1200310320 is an apocalyptic number.

1200310320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200310320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2045040984).

1200310320 is an abundant number, since it is smaller than the sum of its proper divisors (2889771648).

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

1200310320 is a wasteful number, since it uses less digits than its factorization.

1200310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41371 (or 41354 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1200310320 is about 34645.4949452306. The cubic root of 1200310320 is about 1062.7501624564.

Adding to 1200310320 its reverse (230130021), we get a palindrome (1430440341).

The spelling of 1200310320 in words is "one billion, two hundred million, three hundred ten thousand, three hundred twenty".