131212214432243 has 16 divisors (see below), whose sum is σ = 150997236484800. Its totient is φ = 111687637363200.

The previous prime is 131212214432239. The next prime is 131212214432293. The reversal of 131212214432243 is 342234412212131.

It is a cyclic number.

It is not a de Polignac number, because 131212214432243 - 2² = 131212214432239 is a prime.

It is a super-2 number, since 2×131212214432243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131212214432293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9531818 + ... + 18795743.

It is an arithmetic number, because the mean of its divisors is an integer number (9437327280300).

Almost surely, 2^{131212214432243} is an apocalyptic number.

131212214432243 is a deficient number, since it is larger than the sum of its proper divisors (19785022052557).

131212214432243 is a wasteful number, since it uses less digits than its factorization.

131212214432243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28332158.

The product of its digits is 55296, while the sum is 35.

Adding to 131212214432243 its reverse (342234412212131), we get a palindrome (473446626644374).

The spelling of 131212214432243 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred fourteen million, four hundred thirty-two thousand, two hundred forty-three".