1200443145320 has 32 divisors (see below), whose sum is σ = 2701070883720. Its totient is φ = 480164136960.

The previous prime is 1200443145301. The next prime is 1200443145323. The reversal of 1200443145320 is 235413440021.

It can be written as a sum of positive squares in 4 ways, for example, as 1160269356964 + 40173788356 = 1077158^2 + 200434^2 .

It is not an unprimeable number, because it can be changed into a prime (1200443145323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144880 + ... + 1926560.

Almost surely, 2^{1200443145320} is an apocalyptic number.

1200443145320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200443145320 is an abundant number, since it is smaller than the sum of its proper divisors (1500627738400).

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

1200443145320 is a wasteful number, since it uses less digits than its factorization.

1200443145320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820085 (or 820081 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1200443145320 its reverse (235413440021), we get a palindrome (1435856585341).

The spelling of 1200443145320 in words is "one trillion, two hundred billion, four hundred forty-three million, one hundred forty-five thousand, three hundred twenty".