131231201444112 has 160 divisors (see below), whose sum is σ = 432975671783424. Its totient is φ = 33254659814400.

The previous prime is 131231201444081. The next prime is 131231201444143. The reversal of 131231201444112 is 211444102132131.

It is an interprime number because it is at equal distance from previous prime (131231201444081) and next prime (131231201444143).

It is a self number, because there is not a number n which added to its sum of digits gives 131231201444112.

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, 432851848 + ... + 433154919.

Almost surely, 2^{131231201444112} is an apocalyptic number.

131231201444112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131231201444112 is an abundant number, since it is smaller than the sum of its proper divisors (301744470339312).

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

131231201444112 is a wasteful number, since it uses less digits than its factorization.

131231201444112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866006837 (or 866006831 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 131231201444112 its reverse (211444102132131), we get a palindrome (342675303576243).

The spelling of 131231201444112 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, two hundred one million, four hundred forty-four thousand, one hundred twelve".