1315305103321 has 32 divisors (see below), whose sum is σ = 1456266470400. Its totient is φ = 1178069995200.

The previous prime is 1315305103297. The next prime is 1315305103331. The reversal of 1315305103321 is 1233015035131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1315305103321 - 2¹¹ = 1315305101273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315305103321.

It is not an unprimeable number, because it can be changed into a prime (1315305103331) 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 31 ways as a sum of consecutive naturals, for example, 134388190 + ... + 134397976.

It is an arithmetic number, because the mean of its divisors is an integer number (45508327200).

Almost surely, 2^{1315305103321} is an apocalyptic number.

1315305103321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1315305103321 is a deficient number, since it is larger than the sum of its proper divisors (140961367079).

1315305103321 is a wasteful number, since it uses less digits than its factorization.

1315305103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605.

The product of its (nonzero) digits is 4050, while the sum is 28.

The spelling of 1315305103321 in words is "one trillion, three hundred fifteen billion, three hundred five million, one hundred three thousand, three hundred twenty-one".