131212133112 has 32 divisors (see below), whose sum is σ = 328074284880. Its totient is φ = 43731517440.

The previous prime is 131212133093. The next prime is 131212133137. The reversal of 131212133112 is 211331212131.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 181513 + ... + 543480.

Almost surely, 2^131212133112 is an apocalyptic number.

131212133112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131212133112 is an abundant number, since it is smaller than the sum of its proper divisors (196862151768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131212133112 is a wasteful number, since it uses less digits than its factorization.

131212133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732543 (or 732539 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

Adding to 131212133112 its reverse (211331212131), we get a palindrome (342543345243).

The spelling of 131212133112 in words is "one hundred thirty-one billion, two hundred twelve million, one hundred thirty-three thousand, one hundred twelve".