31611643341352 has 32 divisors (see below), whose sum is σ = 59345592235200. Its totient is φ = 15786153212544.

The previous prime is 31611643341349. The next prime is 31611643341379. The reversal of 31611643341352 is 25314334611613.

It is a junction number, because it is equal to n+sod(n) for n = 31611643341299 and 31611643341308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379782763 + ... + 379865989.

It is an arithmetic number, because the mean of its divisors is an integer number (1854549757350).

Almost surely, 2^{31611643341352} is an apocalyptic number.

It is an amenable number.

31611643341352 is a deficient number, since it is larger than the sum of its proper divisors (27733948893848).

31611643341352 is a wasteful number, since it uses less digits than its factorization.

31611643341352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141745 (or 141741 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

Adding to 31611643341352 its reverse (25314334611613), we get a palindrome (56925977952965).

The spelling of 31611643341352 in words is "thirty-one trillion, six hundred eleven billion, six hundred forty-three million, three hundred forty-one thousand, three hundred fifty-two".