103113131 has 4 divisors (see below), whose sum is σ = 112487064. Its totient is φ = 93739200.

The previous prime is 103113107. The next prime is 103113137. The reversal of 103113131 is 131311301.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103113131 is a prime.

It is a super-3 number, since 3×103113131³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103113137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4686950 + ... + 4686971.

It is an arithmetic number, because the mean of its divisors is an integer number (28121766).

Almost surely, 2^103113131 is an apocalyptic number.

103113131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103113131 is a deficient number, since it is larger than the sum of its proper divisors (9373933).

103113131 is an equidigital number, since it uses as much as digits as its factorization.

103113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373932.

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

The square root of 103113131 is about 10154.4635998166. The cubic root of 103113131 is about 468.9263723615.

Adding to 103113131 its reverse (131311301), we get a palindrome (234424432).

The spelling of 103113131 in words is "one hundred three million, one hundred thirteen thousand, one hundred thirty-one".