131113015 has 32 divisors (see below), whose sum is σ = 185610240. Its totient is φ = 87868800.

The previous prime is 131113013. The next prime is 131113019. The reversal of 131113015 is 510311131.

It is not a de Polignac number, because 131113015 - 2¹ = 131113013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131113015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113013) 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 31 ways as a sum of consecutive naturals, for example, 36970 + ... + 40360.

It is an arithmetic number, because the mean of its divisors is an integer number (5800320).

Almost surely, 2^131113015 is an apocalyptic number.

131113015 is a deficient number, since it is larger than the sum of its proper divisors (54497225).

131113015 is a wasteful number, since it uses less digits than its factorization.

131113015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 131113015 is about 11450.4591610992. The cubic root of 131113015 is about 508.0213155232.

Adding to 131113015 its reverse (510311131), we get a palindrome (641424146).

The spelling of 131113015 in words is "one hundred thirty-one million, one hundred thirteen thousand, fifteen".