231203303312 has 20 divisors (see below), whose sum is σ = 447975732480. Its totient is φ = 115596662688.

The previous prime is 231203303239. The next prime is 231203303323. The reversal of 231203303312 is 213303302132.

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, 85889 + ... + 685407.

It is an arithmetic number, because the mean of its divisors is an integer number (22398786624).

Almost surely, 2^231203303312 is an apocalyptic number.

It is an amenable number.

231203303312 is a deficient number, since it is larger than the sum of its proper divisors (216772429168).

231203303312 is a wasteful number, since it uses less digits than its factorization.

231203303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623630 (or 623624 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231203303312 its reverse (213303302132), we get a palindrome (444506605444).

The spelling of 231203303312 in words is "two hundred thirty-one billion, two hundred three million, three hundred three thousand, three hundred twelve".