131230202212 has 24 divisors (see below), whose sum is σ = 241751865600. Its totient is φ = 62158584096.

The previous prime is 131230202209. The next prime is 131230202249. The reversal of 131230202212 is 212202032131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 131230202212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417238 + ... + 2470930.

It is an arithmetic number, because the mean of its divisors is an integer number (10072994400).

Almost surely, 2^131230202212 is an apocalyptic number.

It is an amenable number.

131230202212 is a deficient number, since it is larger than the sum of its proper divisors (110521663388).

131230202212 is a wasteful number, since it uses less digits than its factorization.

131230202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85875 (or 85873 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 131230202212 its reverse (212202032131), we get a palindrome (343432234343).

The spelling of 131230202212 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred two thousand, two hundred twelve".