131212241144012 has 24 divisors (see below), whose sum is σ = 269517035865504. Its totient is φ = 54713984723712.

The previous prime is 131212241143939. The next prime is 131212241144059. The reversal of 131212241144012 is 210441142212131.

It is a happy number.

It is a super-2 number, since 2×131212241144012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63326370173 + ... + 63326372244.

It is an arithmetic number, because the mean of its divisors is an integer number (11229876494396).

Almost surely, 2^{131212241144012} is an apocalyptic number.

It is an amenable number.

131212241144012 is an abundant number, since it is smaller than the sum of its proper divisors (138304794721492).

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

131212241144012 is a wasteful number, since it uses less digits than its factorization.

131212241144012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126652742465 (or 126652742463 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 131212241144012 its reverse (210441142212131), we get a palindrome (341653383356143).

The spelling of 131212241144012 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred forty-one million, one hundred forty-four thousand, twelve".