131310113212 has 48 divisors (see below), whose sum is σ = 238614824448. Its totient is φ = 63184746240.

The previous prime is 131310113203. The next prime is 131310113237. The reversal of 131310113212 is 212311013131.

It is a self number, because there is not a number n which added to its sum of digits gives 131310113212.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 7183188 + ... + 7201444.

It is an arithmetic number, because the mean of its divisors is an integer number (4971142176).

Almost surely, 2^131310113212 is an apocalyptic number.

It is an amenable number.

131310113212 is a deficient number, since it is larger than the sum of its proper divisors (107304711236).

131310113212 is a wasteful number, since it uses less digits than its factorization.

131310113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18946 (or 18944 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131310113212 its reverse (212311013131), we get a palindrome (343621126343).

The spelling of 131310113212 in words is "one hundred thirty-one billion, three hundred ten million, one hundred thirteen thousand, two hundred twelve".