131230223112 has 32 divisors (see below), whose sum is σ = 345342693600. Its totient is φ = 41441122944.

The previous prime is 131230223101. The next prime is 131230223221. The reversal of 131230223112 is 211322032131.

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, 143892333 + ... + 143893244.

It is an arithmetic number, because the mean of its divisors is an integer number (10791959175).

Almost surely, 2^131230223112 is an apocalyptic number.

131230223112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131230223112 is an abundant number, since it is smaller than the sum of its proper divisors (214112470488).

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

131230223112 is a wasteful number, since it uses less digits than its factorization.

131230223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287785605 (or 287785601 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131230223112 its reverse (211322032131), we get a palindrome (342552255243).

The spelling of 131230223112 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred twenty-three thousand, one hundred twelve".