1320243122015 has 8 divisors (see below), whose sum is σ = 1584300834240. Its totient is φ = 1056188439072.

The previous prime is 1320243121999. The next prime is 1320243122053. The reversal of 1320243122015 is 5102213420231.

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 1320243122015 - 2⁴ = 1320243121999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348221 + ... + 1661849.

It is an arithmetic number, because the mean of its divisors is an integer number (198037604280).

Almost surely, 2^{1320243122015} is an apocalyptic number.

1320243122015 is a deficient number, since it is larger than the sum of its proper divisors (264057712225).

1320243122015 is a wasteful number, since it uses less digits than its factorization.

1320243122015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514641.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1320243122015 its reverse (5102213420231), we get a palindrome (6422456542246).

The spelling of 1320243122015 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, one hundred twenty-two thousand, fifteen".