131103611 has 4 divisors (see below), whose sum is σ = 136803792. Its totient is φ = 125403432.

The previous prime is 131103601. The next prime is 131103613. The reversal of 131103611 is 116301131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116301131 = 17 ⋅6841243.

It is a cyclic number.

It is not a de Polignac number, because 131103611 - 2¹⁴ = 131087227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131103611.

It is not an unprimeable number, because it can be changed into a prime (131103613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850056 + ... + 2850101.

It is an arithmetic number, because the mean of its divisors is an integer number (34200948).

Almost surely, 2^131103611 is an apocalyptic number.

131103611 is a deficient number, since it is larger than the sum of its proper divisors (5700181).

131103611 is an equidigital number, since it uses as much as digits as its factorization.

131103611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700180.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 131103611 is about 11450.0485151811. The cubic root of 131103611 is about 508.0091693945.

Adding to 131103611 its reverse (116301131), we get a palindrome (247404742).

The spelling of 131103611 in words is "one hundred thirty-one million, one hundred three thousand, six hundred eleven".