131212123132331 has 16 divisors (see below), whose sum is σ = 141967458877440. Its totient is φ = 120913969635360.

The previous prime is 131212123132313. The next prime is 131212123132357. The reversal of 131212123132331 is 133231321212131.

It is a cyclic number.

It is not a de Polignac number, because 131212123132331 - 2¹⁰ = 131212123131307 is a prime.

It is a super-2 number, since 2×131212123132331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131212123132294 and 131212123132303.

It is not an unprimeable number, because it can be changed into a prime (131212123138331) 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, 412460336 + ... + 412778333.

It is an arithmetic number, because the mean of its divisors is an integer number (8872966179840).

Almost surely, 2^{131212123132331} is an apocalyptic number.

131212123132331 is a deficient number, since it is larger than the sum of its proper divisors (10755335745109).

131212123132331 is a wasteful number, since it uses less digits than its factorization.

131212123132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825238946.

The product of its digits is 3888, while the sum is 29.

Adding to 131212123132331 its reverse (133231321212131), we get a palindrome (264443444344462).

The spelling of 131212123132331 in words is "one hundred thirty-one trillion, two hundred twelve billion, one hundred twenty-three million, one hundred thirty-two thousand, three hundred thirty-one".