131330051505 has 48 divisors (see below), whose sum is σ = 232765678080. Its totient is φ = 68468817024.

The previous prime is 131330051483. The next prime is 131330051507. The reversal of 131330051505 is 505150033131.

131330051505 is a `hidden beast` number, since 13 + 133 + 0 + 0 + 515 + 0 + 5 = 666.

It is not a de Polignac number, because 131330051505 - 2⁶ = 131330051441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131330051507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1715884 + ... + 1790786.

It is an arithmetic number, because the mean of its divisors is an integer number (4849284960).

Almost surely, 2^131330051505 is an apocalyptic number.

131330051505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131330051505 is a deficient number, since it is larger than the sum of its proper divisors (101435626575).

131330051505 is a wasteful number, since it uses less digits than its factorization.

131330051505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75790 (or 75787 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

Adding to 131330051505 its reverse (505150033131), we get a palindrome (636480084636).

The spelling of 131330051505 in words is "one hundred thirty-one billion, three hundred thirty million, fifty-one thousand, five hundred five".