1305603245113 has 8 divisors (see below), whose sum is σ = 1382429025000. Its totient is φ = 1228780308480.

The previous prime is 1305603245071. The next prime is 1305603245117. The reversal of 1305603245113 is 3115423065031.

It can be written as a sum of positive squares in 4 ways, for example, as 424488734784 + 881114510329 = 651528^2 + 938677^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1305603245113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305603245117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273553 + ... + 1638913.

It is an arithmetic number, because the mean of its divisors is an integer number (172803628125).

Almost surely, 2^{1305603245113} is an apocalyptic number.

It is an amenable number.

1305603245113 is a deficient number, since it is larger than the sum of its proper divisors (76825779887).

1305603245113 is a wasteful number, since it uses less digits than its factorization.

1305603245113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421627.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 1305603245113 in words is "one trillion, three hundred five billion, six hundred three million, two hundred forty-five thousand, one hundred thirteen".