131021240010212 has 12 divisors (see below), whose sum is σ = 229335655390380. Its totient is φ = 65496767041536.

The previous prime is 131021240010211. The next prime is 131021240010217. The reversal of 131021240010212 is 212010042120131.

It can be written as a sum of positive squares in 2 ways, for example, as 50469430305856 + 80551809704356 = 7104184^2 + 8975066^2 .

It is not an unprimeable number, because it can be changed into a prime (131021240010211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3463219613 + ... + 3463257444.

It is an arithmetic number, because the mean of its divisors is an integer number (19111304615865).

Almost surely, 2^{131021240010212} is an apocalyptic number.

It is an amenable number.

131021240010212 is a deficient number, since it is larger than the sum of its proper divisors (98314415380168).

131021240010212 is a wasteful number, since it uses less digits than its factorization.

131021240010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926481790 (or 6926481788 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 131021240010212 its reverse (212010042120131), we get a palindrome (343031282130343).

The spelling of 131021240010212 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred forty million, ten thousand, two hundred twelve".