131212013122231 has 2 divisors, whose sum is σ = 131212013122232. Its totient is φ = 131212013122230.

The previous prime is 131212013122153. The next prime is 131212013122237. The reversal of 131212013122231 is 132221310212131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131212013122231 - 2¹⁷ = 131212012991159 is a prime.

It is a super-2 number, since 2×131212013122231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131212013122196 and 131212013122205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131212013122237) 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 as a sum of consecutive naturals, namely, 65606006561115 + 65606006561116.

It is an arithmetic number, because the mean of its divisors is an integer number (65606006561116).

Almost surely, 2^{131212013122231} is an apocalyptic number.

131212013122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212013122231 is an equidigital number, since it uses as much as digits as its factorization.

131212013122231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 131212013122231 its reverse (132221310212131), we get a palindrome (263433323334362).

The spelling of 131212013122231 in words is "one hundred thirty-one trillion, two hundred twelve billion, thirteen million, one hundred twenty-two thousand, two hundred thirty-one".