1321545230615 has 8 divisors (see below), whose sum is σ = 1586044728240. Its totient is φ = 1057109216832.

The previous prime is 1321545230591. The next prime is 1321545230651. The reversal of 1321545230615 is 5160325451231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321545230615 - 2¹⁰ = 1321545229591 is a prime.

It is a super-2 number, since 2×1321545230615² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 15825149 + ... + 15908438.

It is an arithmetic number, because the mean of its divisors is an integer number (198255591030).

Almost surely, 2^{1321545230615} is an apocalyptic number.

1321545230615 is a deficient number, since it is larger than the sum of its proper divisors (264499497625).

1321545230615 is an equidigital number, since it uses as much as digits as its factorization.

1321545230615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31741921.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1321545230615 in words is "one trillion, three hundred twenty-one billion, five hundred forty-five million, two hundred thirty thousand, six hundred fifteen".