1305235104223 has 4 divisors (see below), whose sum is σ = 1305319869648. Its totient is φ = 1305150338800.

The previous prime is 1305235104193. The next prime is 1305235104259. The reversal of 1305235104223 is 3224015325031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1305235104223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305235101223) 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 3 ways as a sum of consecutive naturals, for example, 42359611 + ... + 42390412.

It is an arithmetic number, because the mean of its divisors is an integer number (326329967412).

Almost surely, 2^{1305235104223} is an apocalyptic number.

1305235104223 is a deficient number, since it is larger than the sum of its proper divisors (84765425).

1305235104223 is an equidigital number, since it uses as much as digits as its factorization.

1305235104223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84765424.

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

The spelling of 1305235104223 in words is "one trillion, three hundred five billion, two hundred thirty-five million, one hundred four thousand, two hundred twenty-three".