131212240433312 has 48 divisors (see below), whose sum is σ = 258461750269800. Its totient is φ = 65571164467200.

The previous prime is 131212240433303. The next prime is 131212240433357. The reversal of 131212240433312 is 213334042212131.

It can be written as a sum of positive squares in 4 ways, for example, as 118821249066256 + 12390991367056 = 10900516^2 + 3520084^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591008014 + ... + 1591090482.

Almost surely, 2^{131212240433312} is an apocalyptic number.

It is an amenable number.

131212240433312 is a deficient number, since it is larger than the sum of its proper divisors (127249509836488).

131212240433312 is a wasteful number, since it uses less digits than its factorization.

131212240433312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108369 (or 108361 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 131212240433312 its reverse (213334042212131), we get a palindrome (344546282645443).

The spelling of 131212240433312 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred forty million, four hundred thirty-three thousand, three hundred twelve".