131348423405 has 8 divisors (see below), whose sum is σ = 158272126584. Its totient is φ = 104642726400.

The previous prime is 131348423291. The next prime is 131348423431. The reversal of 131348423405 is 504324843131.

It can be written as a sum of positive squares in 4 ways, for example, as 14070941641 + 117277481764 = 118621^2 + 342458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131348423405 - 2⁸ = 131348423149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 54500216 + ... + 54502625.

It is an arithmetic number, because the mean of its divisors is an integer number (19784015823).

Almost surely, 2^131348423405 is an apocalyptic number.

It is an amenable number.

131348423405 is a deficient number, since it is larger than the sum of its proper divisors (26923703179).

131348423405 is a wasteful number, since it uses less digits than its factorization.

131348423405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109003087.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 131348423405 in words is "one hundred thirty-one billion, three hundred forty-eight million, four hundred twenty-three thousand, four hundred five".