231241204312 has 16 divisors (see below), whose sum is σ = 433706850360. Its totient is φ = 115586044224.

The previous prime is 231241204309. The next prime is 231241204333. The reversal of 231241204312 is 213402142132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4291293 + ... + 4344844.

Almost surely, 2^231241204312 is an apocalyptic number.

It is an amenable number.

231241204312 is a deficient number, since it is larger than the sum of its proper divisors (202465646048).

231241204312 is a wasteful number, since it uses less digits than its factorization.

231241204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639490 (or 8639486 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231241204312 its reverse (213402142132), we get a palindrome (444643346444).

The spelling of 231241204312 in words is "two hundred thirty-one billion, two hundred forty-one million, two hundred four thousand, three hundred twelve".