1215031555313 has 8 divisors (see below), whose sum is σ = 1296500868000. Its totient is φ = 1135314271008.

The previous prime is 1215031555261. The next prime is 1215031555337. The reversal of 1215031555313 is 3135551305121.

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 1215031555313 - 2⁶ = 1215031555249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1215031555343) 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, 438005663 + ... + 438008436.

It is an arithmetic number, because the mean of its divisors is an integer number (162062608500).

Almost surely, 2^{1215031555313} is an apocalyptic number.

It is an amenable number.

1215031555313 is a deficient number, since it is larger than the sum of its proper divisors (81469312687).

1215031555313 is an equidigital number, since it uses as much as digits as its factorization.

1215031555313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876014191.

The product of its (nonzero) digits is 33750, while the sum is 35.

The spelling of 1215031555313 in words is "one trillion, two hundred fifteen billion, thirty-one million, five hundred fifty-five thousand, three hundred thirteen".