231515524254313 has 8 divisors (see below), whose sum is σ = 249338043470600. Its totient is φ = 213694952571648.

The previous prime is 231515524254241. The next prime is 231515524254337. The reversal of 231515524254313 is 313452425515132.

231515524254313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16974704881369 + 214540819372944 = 4120037^2 + 14647212^2 .

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 231515524254313 - 2³⁷ = 231378085300841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231515524254383) 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, 486636498 + ... + 487112011.

It is an arithmetic number, because the mean of its divisors is an integer number (31167255433825).

Almost surely, 2^{231515524254313} is an apocalyptic number.

It is an amenable number.

231515524254313 is a deficient number, since it is larger than the sum of its proper divisors (17822519216287).

231515524254313 is a wasteful number, since it uses less digits than its factorization.

231515524254313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973766811.

The product of its digits is 2160000, while the sum is 46.

Adding to 231515524254313 its reverse (313452425515132), we get a palindrome (544967949769445).

The spelling of 231515524254313 in words is "two hundred thirty-one trillion, five hundred fifteen billion, five hundred twenty-four million, two hundred fifty-four thousand, three hundred thirteen".