331031132312 has 8 divisors (see below), whose sum is σ = 620683373100. Its totient is φ = 165515566152.

The previous prime is 331031132309. The next prime is 331031132317. The reversal of 331031132312 is 213231130133.

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

It is a super-2 number, since 2×331031132312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331031132317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20689445762 + ... + 20689445777.

Almost surely, 2^331031132312 is an apocalyptic number.

It is an amenable number.

331031132312 is a deficient number, since it is larger than the sum of its proper divisors (289652240788).

331031132312 is a wasteful number, since it uses less digits than its factorization.

331031132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41378891545 (or 41378891541 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 331031132312 its reverse (213231130133), we get a palindrome (544262262445).

The spelling of 331031132312 in words is "three hundred thirty-one billion, thirty-one million, one hundred thirty-two thousand, three hundred twelve".