131343221442312 has 48 divisors (see below), whose sum is σ = 388059517900080. Its totient is φ = 39800976194400.

The previous prime is 131343221442227. The next prime is 131343221442319. The reversal of 131343221442312 is 213244122343131.

131343221442312 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 4 + 3 + 2 + 214 + 423 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (131343221442319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82918699614 + ... + 82918701197.

It is an arithmetic number, because the mean of its divisors is an integer number (8084573289585).

Almost surely, 2^{131343221442312} is an apocalyptic number.

131343221442312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131343221442312 is an abundant number, since it is smaller than the sum of its proper divisors (256716296457768).

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

131343221442312 is a wasteful number, since it uses less digits than its factorization.

131343221442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165837400834 (or 165837400827 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 131343221442312 its reverse (213244122343131), we get a palindrome (344587343785443).

The spelling of 131343221442312 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred twenty-one million, four hundred forty-two thousand, three hundred twelve".