131210123212 has 12 divisors (see below), whose sum is σ = 262420246480. Its totient is φ = 56232909936.

The previous prime is 131210123171. The next prime is 131210123227. The reversal of 131210123212 is 212321012131.

131210123212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131210123212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343037887 + ... + 2343037942.

Almost surely, 2^131210123212 is an apocalyptic number.

It is an amenable number.

131210123212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131210123212 is a wasteful number, since it uses less digits than its factorization.

131210123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686075840 (or 4686075838 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131210123212 its reverse (212321012131), we get a palindrome (343531135343).

The spelling of 131210123212 in words is "one hundred thirty-one billion, two hundred ten million, one hundred twenty-three thousand, two hundred twelve".