1305422203642 has 16 divisors (see below), whose sum is σ = 1977877228032. Its totient is φ = 646160477040.

The previous prime is 1305422203633. The next prime is 1305422203643. The reversal of 1305422203642 is 2463022245031.

It is a junction number, because it is equal to n+sod(n) for n = 1305422203598 and 1305422203607.

It is not an unprimeable number, because it can be changed into a prime (1305422203643) 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, 7585378 + ... + 7755565.

It is an arithmetic number, because the mean of its divisors is an integer number (123617326752).

Almost surely, 2^{1305422203642} is an apocalyptic number.

1305422203642 is a deficient number, since it is larger than the sum of its proper divisors (672455024390).

1305422203642 is a wasteful number, since it uses less digits than its factorization.

1305422203642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15341373.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 1305422203642 its reverse (2463022245031), we get a palindrome (3768444448673).

The spelling of 1305422203642 in words is "one trillion, three hundred five billion, four hundred twenty-two million, two hundred three thousand, six hundred forty-two".