131230404134 has 4 divisors (see below), whose sum is σ = 196845606204. Its totient is φ = 65615202066.

The previous prime is 131230404131. The next prime is 131230404187. The reversal of 131230404134 is 431404032131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230404131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32807601032 + ... + 32807601035.

It is an arithmetic number, because the mean of its divisors is an integer number (49211401551).

Almost surely, 2^131230404134 is an apocalyptic number.

131230404134 is a deficient number, since it is larger than the sum of its proper divisors (65615202070).

131230404134 is an equidigital number, since it uses as much as digits as its factorization.

131230404134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65615202069.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131230404134 its reverse (431404032131), we get a palindrome (562634436265).

The spelling of 131230404134 in words is "one hundred thirty-one billion, two hundred thirty million, four hundred four thousand, one hundred thirty-four".