231310223225 has 48 divisors (see below), whose sum is σ = 303713894400. Its totient is φ = 174270035520.

The previous prime is 231310223191. The next prime is 231310223237. The reversal of 231310223225 is 522322013132.

It is not a de Polignac number, because 231310223225 - 2³⁴ = 214130354041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231310223194 and 231310223203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107936504 + ... + 107938646.

It is an arithmetic number, because the mean of its divisors is an integer number (6327372800).

Almost surely, 2^231310223225 is an apocalyptic number.

231310223225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231310223225 is a deficient number, since it is larger than the sum of its proper divisors (72403671175).

231310223225 is a wasteful number, since it uses less digits than its factorization.

231310223225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414 (or 3409 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 231310223225 its reverse (522322013132), we get a palindrome (753632236357).

The spelling of 231310223225 in words is "two hundred thirty-one billion, three hundred ten million, two hundred twenty-three thousand, two hundred twenty-five".