1200542325133 has 4 divisors (see below), whose sum is σ = 1200813884028. Its totient is φ = 1200270766240.

The previous prime is 1200542325083. The next prime is 1200542325161. The reversal of 1200542325133 is 3315232450021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 768108510724 + 432433814409 = 876418^2 + 657597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200542325133 - 2⁹ = 1200542324621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200542325095 and 1200542325104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200542395133) 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, 135772816 + ... + 135781657.

It is an arithmetic number, because the mean of its divisors is an integer number (300203471007).

Almost surely, 2^{1200542325133} is an apocalyptic number.

It is an amenable number.

1200542325133 is a deficient number, since it is larger than the sum of its proper divisors (271558895).

1200542325133 is an equidigital number, since it uses as much as digits as its factorization.

1200542325133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271558894.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 1200542325133 its reverse (3315232450021), we get a palindrome (4515774775154).

The spelling of 1200542325133 in words is "one trillion, two hundred billion, five hundred forty-two million, three hundred twenty-five thousand, one hundred thirty-three".