1315532231513 has 8 divisors (see below), whose sum is σ = 1389850634880. Its totient is φ = 1243144176400.

The previous prime is 1315532231477. The next prime is 1315532231579. The reversal of 1315532231513 is 3151322355131.

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 1315532231513 - 2⁸ = 1315532231257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315532231593) 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, 482585663 + ... + 482588388.

It is an arithmetic number, because the mean of its divisors is an integer number (173731329360).

Almost surely, 2^{1315532231513} is an apocalyptic number.

It is an amenable number.

1315532231513 is a deficient number, since it is larger than the sum of its proper divisors (74318403367).

1315532231513 is an equidigital number, since it uses as much as digits as its factorization.

1315532231513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965174127.

The product of its digits is 40500, while the sum is 35.

Adding to 1315532231513 its reverse (3151322355131), we get a palindrome (4466854586644).

The spelling of 1315532231513 in words is "one trillion, three hundred fifteen billion, five hundred thirty-two million, two hundred thirty-one thousand, five hundred thirteen".