131503113 has 48 divisors (see below), whose sum is σ = 227136000. Its totient is φ = 73241280.

The previous prime is 131503093. The next prime is 131503117. The reversal of 131503113 is 311305131.

It is not a de Polignac number, because 131503113 - 2⁶ = 131503049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131503117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126048 + ... + 127086.

It is an arithmetic number, because the mean of its divisors is an integer number (4732000).

Almost surely, 2^131503113 is an apocalyptic number.

It is an amenable number.

131503113 is a deficient number, since it is larger than the sum of its proper divisors (95632887).

131503113 is a wasteful number, since it uses less digits than its factorization.

131503113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 131503113 is about 11467.4806736266. The cubic root of 131503113 is about 508.5246519724.

Adding to 131503113 its reverse (311305131), we get a palindrome (442808244).

The spelling of 131503113 in words is "one hundred thirty-one million, five hundred three thousand, one hundred thirteen".