312131330204232 has 256 divisors, whose sum is σ = 1015568034693120. Its totient is φ = 77518199404800.

The previous prime is 312131330204231. The next prime is 312131330204263. The reversal of 312131330204232 is 232402033131213.

It is a self number, because there is not a number n which added to its sum of digits gives 312131330204232.

It is not an unprimeable number, because it can be changed into a prime (312131330204231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108710733 + ... + 111544995.

It is an arithmetic number, because the mean of its divisors is an integer number (3967062635520).

Almost surely, 2^{312131330204232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312131330204232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507784017346560).

312131330204232 is an abundant number, since it is smaller than the sum of its proper divisors (703436704488888).

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

312131330204232 is a wasteful number, since it uses less digits than its factorization.

312131330204232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836904 (or 2836900 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 312131330204232 its reverse (232402033131213), we get a palindrome (544533363335445).

The spelling of 312131330204232 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred thirty million, two hundred four thousand, two hundred thirty-two".