131212331213112 has 128 divisors (see below), whose sum is σ = 378188542401600. Its totient is φ = 42116635459584.

The previous prime is 131212331213087. The next prime is 131212331213143. The reversal of 131212331213112 is 211312133212131.

131212331213112 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 1 + 2 + 331 + 213 + 112 = 666.

It is a super-2 number, since 2×131212331213112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83853433 + ... + 85403880.

Almost surely, 2^{131212331213112} is an apocalyptic number.

131212331213112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131212331213112 is an abundant number, since it is smaller than the sum of its proper divisors (246976211188488).

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

131212331213112 is a wasteful number, since it uses less digits than its factorization.

131212331213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169257462 (or 169257452 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 131212331213112 its reverse (211312133212131), we get a palindrome (342524464425243).

The spelling of 131212331213112 in words is "one hundred thirty-one trillion, two hundred twelve billion, three hundred thirty-one million, two hundred thirteen thousand, one hundred twelve".