131212214133109 has 2 divisors, whose sum is σ = 131212214133110. Its totient is φ = 131212214133108.

The previous prime is 131212214133089. The next prime is 131212214133113. The reversal of 131212214133109 is 901331412212131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88516052440209 + 42696161692900 = 9408297^2 + 6534230^2 .

It is an emirp because it is prime and its reverse (901331412212131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131212214133109 - 2¹⁹ = 131212213608821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131212214133139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606107066554 + 65606107066555.

It is an arithmetic number, because the mean of its divisors is an integer number (65606107066555).

Almost surely, 2^{131212214133109} is an apocalyptic number.

It is an amenable number.

131212214133109 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212214133109 is an equidigital number, since it uses as much as digits as its factorization.

131212214133109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 131212214133109 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred fourteen million, one hundred thirty-three thousand, one hundred nine".