1200556310245 has 4 divisors (see below), whose sum is σ = 1440667572300. Its totient is φ = 960445048192.

The previous prime is 1200556310231. The next prime is 1200556310251. The reversal of 1200556310245 is 5420136550021.

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 347960773924 + 852595536321 = 589882^2 + 923361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200556310245 - 2²³ = 1200547921637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200556310245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120055631020 + ... + 120055631029.

It is an arithmetic number, because the mean of its divisors is an integer number (360166893075).

Almost surely, 2^{1200556310245} is an apocalyptic number.

It is an amenable number.

1200556310245 is a deficient number, since it is larger than the sum of its proper divisors (240111262055).

1200556310245 is an equidigital number, since it uses as much as digits as its factorization.

1200556310245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240111262054.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1200556310245 in words is "one trillion, two hundred billion, five hundred fifty-six million, three hundred ten thousand, two hundred forty-five".