1305603322413 has 32 divisors (see below), whose sum is σ = 1900397353344. Its totient is φ = 792472004352.

The previous prime is 1305603322349. The next prime is 1305603322421. The reversal of 1305603322413 is 3142233065031.

It is not a de Polignac number, because 1305603322413 - 2⁶ = 1305603322349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305603322013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1655295 + ... + 2313267.

It is an arithmetic number, because the mean of its divisors is an integer number (59387417292).

Almost surely, 2^{1305603322413} is an apocalyptic number.

1305603322413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1305603322413 is a deficient number, since it is larger than the sum of its proper divisors (594794030931).

1305603322413 is a wasteful number, since it uses less digits than its factorization.

1305603322413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658685.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 1305603322413 its reverse (3142233065031), we get a palindrome (4447836387444).

The spelling of 1305603322413 in words is "one trillion, three hundred five billion, six hundred three million, three hundred twenty-two thousand, four hundred thirteen".