131312100231212 has 6 divisors (see below), whose sum is σ = 229796175404628. Its totient is φ = 65656050115604.

The previous prime is 131312100231149. The next prime is 131312100231229. The reversal of 131312100231212 is 212132001213131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16414012528898 + ... + 16414012528905.

It is an arithmetic number, because the mean of its divisors is an integer number (38299362567438).

Almost surely, 2^{131312100231212} is an apocalyptic number.

It is an amenable number.

131312100231212 is a deficient number, since it is larger than the sum of its proper divisors (98484075173416).

131312100231212 is a wasteful number, since it uses less digits than its factorization.

131312100231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32828025057807 (or 32828025057805 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 131312100231212 its reverse (212132001213131), we get a palindrome (343444101444343).

The spelling of 131312100231212 in words is "one hundred thirty-one trillion, three hundred twelve billion, one hundred million, two hundred thirty-one thousand, two hundred twelve".