131178340343 has 2 divisors, whose sum is σ = 131178340344. Its totient is φ = 131178340342.

The previous prime is 131178340331. The next prime is 131178340351. The reversal of 131178340343 is 343043871131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131178340343 - 2⁴ = 131178340327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131178340297 and 131178340306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131178340373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65589170171 + 65589170172.

It is an arithmetic number, because the mean of its divisors is an integer number (65589170172).

Almost surely, 2^131178340343 is an apocalyptic number.

131178340343 is a deficient number, since it is larger than the sum of its proper divisors (1).

131178340343 is an equidigital number, since it uses as much as digits as its factorization.

131178340343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 131178340343 in words is "one hundred thirty-one billion, one hundred seventy-eight million, three hundred forty thousand, three hundred forty-three".