131012115 has 32 divisors (see below), whose sum is σ = 239029056. Its totient is φ = 60702720.

The previous prime is 131012113. The next prime is 131012173. The reversal of 131012115 is 511210131.

It is not a de Polignac number, because 131012115 - 2¹ = 131012113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 131012094 and 131012103.

It is not an unprimeable number, because it can be changed into a prime (131012113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16446 + ... + 23075.

It is an arithmetic number, because the mean of its divisors is an integer number (7469658).

Almost surely, 2^131012115 is an apocalyptic number.

131012115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131012115 is a deficient number, since it is larger than the sum of its proper divisors (108016941).

131012115 is a wasteful number, since it uses less digits than its factorization.

131012115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39559.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 131012115 is about 11446.0523762562. The cubic root of 131012115 is about 507.8909635886.

Adding to 131012115 its reverse (511210131), we get a palindrome (642222246).

The spelling of 131012115 in words is "one hundred thirty-one million, twelve thousand, one hundred fifteen".