331201022312 has 8 divisors (see below), whose sum is σ = 621001916850. Its totient is φ = 165600511152.

The previous prime is 331201022239. The next prime is 331201022393. The reversal of 331201022312 is 213220102133.

It can be written as a sum of positive squares in only one way, i.e., 234998074756 + 96202947556 = 484766^2 + 310166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20700063887 + ... + 20700063902.

Almost surely, 2^331201022312 is an apocalyptic number.

It is an amenable number.

331201022312 is a deficient number, since it is larger than the sum of its proper divisors (289800894538).

331201022312 is a wasteful number, since it uses less digits than its factorization.

331201022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41400127795 (or 41400127791 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 331201022312 its reverse (213220102133), we get a palindrome (544421124445).

The spelling of 331201022312 in words is "three hundred thirty-one billion, two hundred one million, twenty-two thousand, three hundred twelve".