1200343224321 has 6 divisors (see below), whose sum is σ = 1733829101810. Its totient is φ = 800228816208.

The previous prime is 1200343224313. The next prime is 1200343224341. The reversal of 1200343224321 is 1234223430021.

1200343224321 is a `hidden beast` number, since 1 + 200 + 3 + 4 + 3 + 22 + 432 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1145839652721 + 54503571600 = 1070439^2 + 233460^2 .

It is not a de Polignac number, because 1200343224321 - 2³ = 1200343224313 is a prime.

It is a super-2 number, since 2×1200343224321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200343224341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66685734676 + ... + 66685734693.

Almost surely, 2^{1200343224321} is an apocalyptic number.

It is an amenable number.

1200343224321 is a deficient number, since it is larger than the sum of its proper divisors (533485877489).

1200343224321 is a wasteful number, since it uses less digits than its factorization.

1200343224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133371469375 (or 133371469372 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1200343224321 its reverse (1234223430021), we get a palindrome (2434566654342).

The spelling of 1200343224321 in words is "one trillion, two hundred billion, three hundred forty-three million, two hundred twenty-four thousand, three hundred twenty-one".