131223003212 has 24 divisors (see below), whose sum is σ = 262587134880. Its totient is φ = 56208188160.

The previous prime is 131223003211. The next prime is 131223003227. The reversal of 131223003212 is 212300322131.

It is not an unprimeable number, because it can be changed into a prime (131223003211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207037 + ... + 1311252.

It is an arithmetic number, because the mean of its divisors is an integer number (10941130620).

Almost surely, 2^131223003212 is an apocalyptic number.

It is an amenable number.

131223003212 is an abundant number, since it is smaller than the sum of its proper divisors (131364131668).

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

131223003212 is a wasteful number, since it uses less digits than its factorization.

131223003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520161 (or 2520159 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131223003212 its reverse (212300322131), we get a palindrome (343523325343).

The spelling of 131223003212 in words is "one hundred thirty-one billion, two hundred twenty-three million, three thousand, two hundred twelve".