232520115323513 has 4 divisors (see below), whose sum is σ = 232520626008420. Its totient is φ = 232519604638608.

The previous prime is 232520115323497. The next prime is 232520115323563. The reversal of 232520115323513 is 315323511025232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121943365583209 + 110576749740304 = 11042797^2 + 10515548^2 .

It is a cyclic number.

It is not a de Polignac number, because 232520115323513 - 2⁴ = 232520115323497 is a prime.

It is a super-2 number, since 2×232520115323513² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232520115323563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254658878 + ... + 255570311.

It is an arithmetic number, because the mean of its divisors is an integer number (58130156502105).

Almost surely, 2^{232520115323513} is an apocalyptic number.

It is an amenable number.

232520115323513 is a deficient number, since it is larger than the sum of its proper divisors (510684907).

232520115323513 is an equidigital number, since it uses as much as digits as its factorization.

232520115323513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510684906.

The product of its (nonzero) digits is 162000, while the sum is 38.

Adding to 232520115323513 its reverse (315323511025232), we get a palindrome (547843626348745).

The spelling of 232520115323513 in words is "two hundred thirty-two trillion, five hundred twenty billion, one hundred fifteen million, three hundred twenty-three thousand, five hundred thirteen".