131231313232 has 20 divisors (see below), whose sum is σ = 254314650400. Its totient is φ = 65601726048.

The previous prime is 131231313181. The next prime is 131231313319. The reversal of 131231313232 is 232313132131.

It is a junction number, because it is equal to n+sod(n) for n = 131231313197 and 131231313206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792732 + ... + 943867.

It is an arithmetic number, because the mean of its divisors is an integer number (12715732520).

Almost surely, 2^131231313232 is an apocalyptic number.

It is an amenable number.

131231313232 is a deficient number, since it is larger than the sum of its proper divisors (123083337168).

131231313232 is a wasteful number, since it uses less digits than its factorization.

131231313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741330 (or 1741324 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 131231313232 its reverse (232313132131), we get a palindrome (363544445363).

The spelling of 131231313232 in words is "one hundred thirty-one billion, two hundred thirty-one million, three hundred thirteen thousand, two hundred thirty-two".