231353500325 has 6 divisors (see below), whose sum is σ = 286878340434. Its totient is φ = 185082800240.

The previous prime is 231353500321. The next prime is 231353500331. The reversal of 231353500325 is 523005353132.

It can be written as a sum of positive squares in 3 ways, for example, as 2011163716 + 229342336609 = 44846^2 + 478897^2 .

It is not a de Polignac number, because 231353500325 - 2² = 231353500321 is a prime.

It is a super-2 number, since 2×231353500325² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231353500291 and 231353500300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231353500321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4627069982 + ... + 4627070031.

It is an arithmetic number, because the mean of its divisors is an integer number (47813056739).

Almost surely, 2^231353500325 is an apocalyptic number.

231353500325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231353500325 is a deficient number, since it is larger than the sum of its proper divisors (55524840109).

231353500325 is an equidigital number, since it uses as much as digits as its factorization.

231353500325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254140023 (or 9254140018 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 32.

Adding to 231353500325 its reverse (523005353132), we get a palindrome (754358853457).

The spelling of 231353500325 in words is "two hundred thirty-one billion, three hundred fifty-three million, five hundred thousand, three hundred twenty-five".