1200320340032 has 112 divisors (see below), whose sum is σ = 2653257494592. Its totient is φ = 534195118080.

The previous prime is 1200320340031. The next prime is 1200320340047. The reversal of 1200320340032 is 2300430230021.

It is a super-2 number, since 2×1200320340032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200320339986 and 1200320340013.

It is not an unprimeable number, because it can be changed into a prime (1200320340031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6955463 + ... + 7125945.

Almost surely, 2^{1200320340032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200320340032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326628747296).

1200320340032 is an abundant number, since it is smaller than the sum of its proper divisors (1452937154560).

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

1200320340032 is a wasteful number, since it uses less digits than its factorization.

1200320340032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170716 (or 170706 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1200320340032 its reverse (2300430230021), we get a palindrome (3500750570053).

The spelling of 1200320340032 in words is "one trillion, two hundred billion, three hundred twenty million, three hundred forty thousand, thirty-two".