131110013 has 4 divisors (see below), whose sum is σ = 138010560. Its totient is φ = 124209468.

The previous prime is 131110009. The next prime is 131110033. The reversal of 131110013 is 310011131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310011131 = 29 ⋅10690039.

It is a cyclic number.

It is not a de Polignac number, because 131110013 - 2² = 131110009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131109976 and 131110003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131110003) 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, 3450245 + ... + 3450282.

It is an arithmetic number, because the mean of its divisors is an integer number (34502640).

Almost surely, 2^131110013 is an apocalyptic number.

It is an amenable number.

131110013 is a deficient number, since it is larger than the sum of its proper divisors (6900547).

131110013 is an equidigital number, since it uses as much as digits as its factorization.

131110013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900546.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 131110013 is about 11450.3280739025. The cubic root of 131110013 is about 508.0174382279.

Adding to 131110013 its reverse (310011131), we get a palindrome (441121144).

The spelling of 131110013 in words is "one hundred thirty-one million, one hundred ten thousand, thirteen".