131321332312 has 32 divisors (see below), whose sum is σ = 258368486400. Its totient is φ = 62454968224.

The previous prime is 131321332291. The next prime is 131321332313. The reversal of 131321332312 is 213233123131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321332313) by changing a digit.

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, 1960648 + ... + 2026519.

It is an arithmetic number, because the mean of its divisors is an integer number (8074015200).

Almost surely, 2^131321332312 is an apocalyptic number.

It is an amenable number.

131321332312 is a deficient number, since it is larger than the sum of its proper divisors (127047154088).

131321332312 is a wasteful number, since it uses less digits than its factorization.

131321332312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987375 (or 3987371 counting only the distinct ones).

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

Adding to 131321332312 its reverse (213233123131), we get a palindrome (344554455443).

The spelling of 131321332312 in words is "one hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-two thousand, three hundred twelve".