1305523533013 has 8 divisors (see below), whose sum is σ = 1492184640128. Its totient is φ = 1118901862224.

The previous prime is 1305523533011. The next prime is 1305523533059. The reversal of 1305523533013 is 3103353255031.

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

It is a cyclic number.

It is not a de Polignac number, because 1305523533013 - 2¹ = 1305523533011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1305523533013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305523533011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9788106 + ... + 9920587.

It is an arithmetic number, because the mean of its divisors is an integer number (186523080016).

Almost surely, 2^{1305523533013} is an apocalyptic number.

It is an amenable number.

1305523533013 is a deficient number, since it is larger than the sum of its proper divisors (186661107115).

1305523533013 is an equidigital number, since it uses as much as digits as its factorization.

1305523533013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19718163.

The product of its (nonzero) digits is 60750, while the sum is 34.

Adding to 1305523533013 its reverse (3103353255031), we get a palindrome (4408876788044).

The spelling of 1305523533013 in words is "one trillion, three hundred five billion, five hundred twenty-three million, five hundred thirty-three thousand, thirteen".