1103013 has 6 divisors (see below), whose sum is σ = 1593254. Its totient is φ = 735336.

The previous prime is 1103009. The next prime is 1103017. The reversal of 1103013 is 3103011.

It is an interprime number because it is at equal distance from previous prime (1103009) and next prime (1103017).

It can be written as a sum of positive squares in only one way, i.e., 986049 + 116964 = 993^2 + 342^2 .

It is not a de Polignac number, because 1103013 - 2² = 1103009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 122557 = 1103013 / (1 + 1 + 0 + 3 + 0 + 1 + 3).

It is a Duffinian number.

1103013 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1102986 and 1103004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61270 + ... + 61287.

2^1103013 is an apocalyptic number.

It is an amenable number.

1103013 is a deficient number, since it is larger than the sum of its proper divisors (490241).

1103013 is a wasteful number, since it uses less digits than its factorization.

1103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122563 (or 122560 counting only the distinct ones).

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

The square root of 1103013 is about 1050.2442573040. The cubic root of 1103013 is about 103.3221759256.

Adding to 1103013 its reverse (3103011), we get a palindrome (4206024).

The spelling of 1103013 in words is "one million, one hundred three thousand, thirteen".