131103313 has 8 divisors (see below), whose sum is σ = 143279136. Its totient is φ = 118970400.

The previous prime is 131103311. The next prime is 131103361. The reversal of 131103313 is 313301131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131103313 - 2¹ = 131103311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131103311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4156 + ... + 16717.

It is an arithmetic number, because the mean of its divisors is an integer number (17909892).

Almost surely, 2^131103313 is an apocalyptic number.

It is an amenable number.

131103313 is a deficient number, since it is larger than the sum of its proper divisors (12175823).

131103313 is a wasteful number, since it uses less digits than its factorization.

131103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21455.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 131103313 is about 11450.0355021284. The cubic root of 131103313 is about 508.0087844907.

Adding to 131103313 its reverse (313301131), we get a palindrome (444404444).

The spelling of 131103313 in words is "one hundred thirty-one million, one hundred three thousand, three hundred thirteen".