1215311545883 has 8 divisors (see below), whose sum is σ = 1234201024080. Its totient is φ = 1196556512800.

The previous prime is 1215311545879. The next prime is 1215311545907. The reversal of 1215311545883 is 3885451135121.

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 1215311545883 - 2² = 1215311545879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1215311542883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33593060 + ... + 33629217.

It is an arithmetic number, because the mean of its divisors is an integer number (154275128010).

Almost surely, 2^{1215311545883} is an apocalyptic number.

1215311545883 is a deficient number, since it is larger than the sum of its proper divisors (18889478197).

1215311545883 is a wasteful number, since it uses less digits than its factorization.

1215311545883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67222557.

The product of its digits is 576000, while the sum is 47.

The spelling of 1215311545883 in words is "one trillion, two hundred fifteen billion, three hundred eleven million, five hundred forty-five thousand, eight hundred eighty-three".