131105423 has 2 divisors, whose sum is σ = 131105424. Its totient is φ = 131105422.

The previous prime is 131105369. The next prime is 131105431. The reversal of 131105423 is 324501131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131105423 - 2¹⁰ = 131104399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131105395 and 131105404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131105473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65552711 + 65552712.

It is an arithmetic number, because the mean of its divisors is an integer number (65552712).

Almost surely, 2^131105423 is an apocalyptic number.

131105423 is a deficient number, since it is larger than the sum of its proper divisors (1).

131105423 is an equidigital number, since it uses as much as digits as its factorization.

131105423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131105423 is about 11450.1276412099. The cubic root of 131105423 is about 508.0115098039.

Adding to 131105423 its reverse (324501131), we get a palindrome (455606554).

The spelling of 131105423 in words is "one hundred thirty-one million, one hundred five thousand, four hundred twenty-three".