131103032212 has 24 divisors (see below), whose sum is σ = 235056686760. Its totient is φ = 63944394240.

The previous prime is 131103032183. The next prime is 131103032227. The reversal of 131103032212 is 212230301131.

It can be written as a sum of positive squares in 4 ways, for example, as 1131245956 + 129971786256 = 33634^2 + 360516^2 .

It is a super-2 number, since 2×131103032212² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131103032212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326114 + ... + 1421542.

It is an arithmetic number, because the mean of its divisors is an integer number (9794028615).

Almost surely, 2^131103032212 is an apocalyptic number.

It is an amenable number.

131103032212 is a deficient number, since it is larger than the sum of its proper divisors (103953654548).

131103032212 is a wasteful number, since it uses less digits than its factorization.

131103032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103851 (or 103849 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131103032212 its reverse (212230301131), we get a palindrome (343333333343).

The spelling of 131103032212 in words is "one hundred thirty-one billion, one hundred three million, thirty-two thousand, two hundred twelve".