131404313420505 has 48 divisors (see below), whose sum is σ = 227917505786880. Its totient is φ = 70036151040000.

The previous prime is 131404313420473. The next prime is 131404313420521. The reversal of 131404313420505 is 505024313404131.

131404313420505 is a `hidden beast` number, since 1 + 3 + 14 + 0 + 4 + 3 + 134 + 2 + 0 + 505 = 666.

It is not a de Polignac number, because 131404313420505 - 2⁵ = 131404313420473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131404313420505.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483588930 + ... + 483860580.

It is an arithmetic number, because the mean of its divisors is an integer number (4748281370560).

Almost surely, 2^{131404313420505} is an apocalyptic number.

131404313420505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131404313420505 is a deficient number, since it is larger than the sum of its proper divisors (96513192366375).

131404313420505 is a wasteful number, since it uses less digits than its factorization.

131404313420505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278702 (or 278699 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 131404313420505 its reverse (505024313404131), we get a palindrome (636428626824636).

The spelling of 131404313420505 in words is "one hundred thirty-one trillion, four hundred four billion, three hundred thirteen million, four hundred twenty thousand, five hundred five".