1200320032 has 24 divisors (see below), whose sum is σ = 2364068700. Its totient is φ = 599921664.

The previous prime is 1200320027. The next prime is 1200320039. The reversal of 1200320032 is 2300230021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1036582416 + 163737616 = 32196^2 + 12796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1200319994 and 1200320021.

It is not an unprimeable number, because it can be changed into a prime (1200320039) 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, 96844 + ... + 108532.

Almost surely, 2^1200320032 is an apocalyptic number.

It is an amenable number.

1200320032 is a deficient number, since it is larger than the sum of its proper divisors (1163748668).

1200320032 is a wasteful number, since it uses less digits than its factorization.

1200320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908 (or 14900 counting only the distinct ones).

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

The square root of 1200320032 is about 34645.6351074706. The cubic root of 1200320032 is about 1062.7530287712.

Adding to 1200320032 its reverse (2300230021), we get a palindrome (3500550053).

The spelling of 1200320032 in words is "one billion, two hundred million, three hundred twenty thousand, thirty-two".