131212333312919 has 2 divisors, whose sum is σ = 131212333312920. Its totient is φ = 131212333312918.

The previous prime is 131212333312897. The next prime is 131212333313011. The reversal of 131212333312919 is 919213333212131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131212333312919 is a prime.

It is a super-2 number, since 2×131212333312919² (a number of 29 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 131212333312919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131212336312919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606166656459 + 65606166656460.

It is an arithmetic number, because the mean of its divisors is an integer number (65606166656460).

Almost surely, 2^{131212333312919} is an apocalyptic number.

131212333312919 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212333312919 is an equidigital number, since it uses as much as digits as its factorization.

131212333312919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 44.

The spelling of 131212333312919 in words is "one hundred thirty-one trillion, two hundred twelve billion, three hundred thirty-three million, three hundred twelve thousand, nine hundred nineteen".