131011115 has 16 divisors (see below), whose sum is σ = 164125440. Its totient is φ = 100277760.

The previous prime is 131011079. The next prime is 131011123. The reversal of 131011115 is 511110131.

It is not a de Polignac number, because 131011115 - 2⁶ = 131011051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131011115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9047 + ... + 18543.

It is an arithmetic number, because the mean of its divisors is an integer number (10257840).

Almost surely, 2^131011115 is an apocalyptic number.

131011115 is a deficient number, since it is larger than the sum of its proper divisors (33114325).

131011115 is an equidigital number, since it uses as much as digits as its factorization.

131011115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622.

The product of its (nonzero) digits is 15, while the sum is 14.

The square root of 131011115 is about 11446.0086929899. The cubic root of 131011115 is about 507.8896713614.

Adding to 131011115 its reverse (511110131), we get a palindrome (642121246).

The spelling of 131011115 in words is "one hundred thirty-one million, eleven thousand, one hundred fifteen".