31312146366 has 48 divisors (see below), whose sum is σ = 68915059200. Its totient is φ = 10272946320.

The previous prime is 31312146361. The next prime is 31312146377. The reversal of 31312146366 is 66364121313.

31312146366 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 2 + 14 + 636 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31312146366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312146361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745071 + ... + 785973.

It is an arithmetic number, because the mean of its divisors is an integer number (1435730400).

Almost surely, 2^31312146366 is an apocalyptic number.

31312146366 is an abundant number, since it is smaller than the sum of its proper divisors (37602912834).

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

31312146366 is a wasteful number, since it uses less digits than its factorization.

31312146366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41581 (or 41578 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

Adding to 31312146366 its reverse (66364121313), we get a palindrome (97676267679).

The spelling of 31312146366 in words is "thirty-one billion, three hundred twelve million, one hundred forty-six thousand, three hundred sixty-six".