131103113 has 4 divisors (see below), whose sum is σ = 135623940. Its totient is φ = 126582288.

The previous prime is 131103103. The next prime is 131103127. The reversal of 131103113 is 311301131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35904064 + 95199049 = 5992^2 + 9757^2 .

It is a cyclic number.

It is not a de Polignac number, because 131103113 - 2¹⁰ = 131102089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131103103) 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, 2260370 + ... + 2260427.

It is an arithmetic number, because the mean of its divisors is an integer number (33905985).

Almost surely, 2^131103113 is an apocalyptic number.

It is an amenable number.

131103113 is a deficient number, since it is larger than the sum of its proper divisors (4520827).

131103113 is an equidigital number, since it uses as much as digits as its factorization.

131103113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520826.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 131103113 is about 11450.0267685277. The cubic root of 131103113 is about 508.0085261656.

Adding to 131103113 its reverse (311301131), we get a palindrome (442404244).

The spelling of 131103113 in words is "one hundred thirty-one million, one hundred three thousand, one hundred thirteen".