231203341225 has 6 divisors (see below), whose sum is σ = 286692143150. Its totient is φ = 184962672960.

The previous prime is 231203341219. The next prime is 231203341247. The reversal of 231203341225 is 522143302132.

It is a happy number.

231203341225 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 3 ways, for example, as 3236244544 + 227967096681 = 56888^2 + 477459^2 .

It is not a de Polignac number, because 231203341225 - 2⁷ = 231203341097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231203341193 and 231203341202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4624066800 + ... + 4624066849.

Almost surely, 2^231203341225 is an apocalyptic number.

231203341225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231203341225 is a deficient number, since it is larger than the sum of its proper divisors (55488801925).

231203341225 is an equidigital number, since it uses as much as digits as its factorization.

231203341225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248133659 (or 9248133654 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 231203341225 its reverse (522143302132), we get a palindrome (753346643357).

The spelling of 231203341225 in words is "two hundred thirty-one billion, two hundred three million, three hundred forty-one thousand, two hundred twenty-five".