131442420505403 has 16 divisors (see below), whose sum is σ = 162156423674880. Its totient is φ = 104050371850656.

The previous prime is 131442420505379. The next prime is 131442420505411. The reversal of 131442420505403 is 304505024244131.

It is not a de Polignac number, because 131442420505403 - 2²⁰ = 131442419456827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131442420505483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14076073775 + ... + 14076083112.

It is an arithmetic number, because the mean of its divisors is an integer number (10134776479680).

Almost surely, 2^{131442420505403} is an apocalyptic number.

131442420505403 is a deficient number, since it is larger than the sum of its proper divisors (30714003169477).

131442420505403 is a wasteful number, since it uses less digits than its factorization.

131442420505403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28152156946.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 131442420505403 its reverse (304505024244131), we get a palindrome (435947444749534).

The spelling of 131442420505403 in words is "one hundred thirty-one trillion, four hundred forty-two billion, four hundred twenty million, five hundred five thousand, four hundred three".