1305442215323 has 16 divisors (see below), whose sum is σ = 1397972701440. Its totient is φ = 1215381736800.

The previous prime is 1305442215313. The next prime is 1305442215331. The reversal of 1305442215323 is 3235122445031.

It is a cyclic number.

It is not a de Polignac number, because 1305442215323 - 2¹⁰ = 1305442214299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305442215313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681983 + ... + 1753848.

It is an arithmetic number, because the mean of its divisors is an integer number (87373293840).

Almost surely, 2^{1305442215323} is an apocalyptic number.

1305442215323 is a deficient number, since it is larger than the sum of its proper divisors (92530486117).

1305442215323 is a wasteful number, since it uses less digits than its factorization.

1305442215323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436338.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 1305442215323 in words is "one trillion, three hundred five billion, four hundred forty-two million, two hundred fifteen thousand, three hundred twenty-three".