131431112012 has 12 divisors (see below), whose sum is σ = 242109943320. Its totient is φ = 62256842496.

The previous prime is 131431112003. The next prime is 131431112017. The reversal of 131431112012 is 210211134131.

131431112012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131431112017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864678293 + ... + 864678444.

It is an arithmetic number, because the mean of its divisors is an integer number (20175828610).

Almost surely, 2^131431112012 is an apocalyptic number.

It is an amenable number.

131431112012 is a deficient number, since it is larger than the sum of its proper divisors (110678831308).

131431112012 is a wasteful number, since it uses less digits than its factorization.

131431112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729356760 (or 1729356758 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 131431112012 its reverse (210211134131), we get a palindrome (341642246143).

The spelling of 131431112012 in words is "one hundred thirty-one billion, four hundred thirty-one million, one hundred twelve thousand, twelve".