231330331122312 has 16 divisors (see below), whose sum is σ = 578325827805840. Its totient is φ = 77110110374096.

The previous prime is 231330331122287. The next prime is 231330331122313. The reversal of 231330331122312 is 213221133033132.

It is a self number, because there is not a number n which added to its sum of digits gives 231330331122312.

It is not an unprimeable number, because it can be changed into a prime (231330331122313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4819381898358 + ... + 4819381898405.

It is an arithmetic number, because the mean of its divisors is an integer number (36145364237865).

Almost surely, 2^{231330331122312} is an apocalyptic number.

It is an amenable number.

231330331122312 is an abundant number, since it is smaller than the sum of its proper divisors (346995496683528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231330331122312 is a wasteful number, since it uses less digits than its factorization.

231330331122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638763796772 (or 9638763796768 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 231330331122312 its reverse (213221133033132), we get a palindrome (444551464155444).

The spelling of 231330331122312 in words is "two hundred thirty-one trillion, three hundred thirty billion, three hundred thirty-one million, one hundred twenty-two thousand, three hundred twelve".