1103131 has 4 divisors (see below), whose sum is σ = 1141200. Its totient is φ = 1065064.

The previous prime is 1103129. The next prime is 1103143. The reversal of 1103131 is 1313011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313011 = 7 ⋅187573.

It is a cyclic number.

It is not a de Polignac number, because 1103131 - 2¹ = 1103129 is a prime.

It is a super-3 number, since 3×1103131³ = 4027193733374991273, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

1103131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1103101) 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, 18991 + ... + 19048.

It is an arithmetic number, because the mean of its divisors is an integer number (285300).

2^1103131 is an apocalyptic number.

1103131 is a deficient number, since it is larger than the sum of its proper divisors (38069).

1103131 is an equidigital number, since it uses as much as digits as its factorization.

1103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38068.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1103131 is about 1050.3004332095. The cubic root of 1103131 is about 103.3258602527.

Adding to 1103131 its reverse (1313011), we get a palindrome (2416142).

The spelling of 1103131 in words is "one million, one hundred three thousand, one hundred thirty-one".