231025361 has 24 divisors (see below), whose sum is σ = 277785792. Its totient is φ = 188157600.

The previous prime is 231025349. The next prime is 231025381. The reversal of 231025361 is 163520132.

231025361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231025361 - 2¹⁸ = 230763217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231025331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410066 + ... + 410628.

It is an arithmetic number, because the mean of its divisors is an integer number (11574408).

Almost surely, 2^231025361 is an apocalyptic number.

It is an amenable number.

231025361 is a deficient number, since it is larger than the sum of its proper divisors (46760431).

231025361 is an equidigital number, since it uses as much as digits as its factorization.

231025361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 231025361 is about 15199.5184463193. The cubic root of 231025361 is about 613.6016976657.

Adding to 231025361 its reverse (163520132), we get a palindrome (394545493).

The spelling of 231025361 in words is "two hundred thirty-one million, twenty-five thousand, three hundred sixty-one".