1305423204144 has 20 divisors (see below), whose sum is σ = 3372343277496. Its totient is φ = 435141068032.

The previous prime is 1305423204143. The next prime is 1305423204167. The reversal of 1305423204144 is 4414023245031.

It is not an unprimeable number, because it can be changed into a prime (1305423204143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13598158329 + ... + 13598158424.

Almost surely, 2^{1305423204144} is an apocalyptic number.

It is an amenable number.

1305423204144 is an abundant number, since it is smaller than the sum of its proper divisors (2066920073352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1305423204144 is a wasteful number, since it uses less digits than its factorization.

1305423204144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27196316764 (or 27196316758 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 1305423204144 its reverse (4414023245031), we get a palindrome (5719446449175).

The spelling of 1305423204144 in words is "one trillion, three hundred five billion, four hundred twenty-three million, two hundred four thousand, one hundred forty-four".