131212013332 has 12 divisors (see below), whose sum is σ = 233385302836. Its totient is φ = 64530498240.

The previous prime is 131212013323. The next prime is 131212013389. The reversal of 131212013332 is 233310212131.

It can be written as a sum of positive squares in 2 ways, for example, as 2464526736 + 128747486596 = 49644^2 + 358814^2 .

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 3 ways as a sum of consecutive naturals, for example, 268876833 + ... + 268877320.

Almost surely, 2^131212013332 is an apocalyptic number.

It is an amenable number.

131212013332 is a deficient number, since it is larger than the sum of its proper divisors (102173289504).

131212013332 is a wasteful number, since it uses less digits than its factorization.

131212013332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537754218 (or 537754216 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131212013332 its reverse (233310212131), we get a palindrome (364522225463).

The spelling of 131212013332 in words is "one hundred thirty-one billion, two hundred twelve million, thirteen thousand, three hundred thirty-two".