1331113 has 4 divisors (see below), whose sum is σ = 1521280. Its totient is φ = 1140948.

The previous prime is 1331107. The next prime is 1331119. The reversal of 1331113 is 3111331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1331107) and next prime (1331119).

It is a cyclic number.

It is not a de Polignac number, because 1331113 - 2⁹ = 1330601 is a prime.

It is an Ulam number.

It is a Duffinian number.

1331113 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1331093 and 1331102.

It is not an unprimeable number, because it can be changed into a prime (1331119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95073 + ... + 95086.

It is an arithmetic number, because the mean of its divisors is an integer number (380320).

2^1331113 is an apocalyptic number.

It is an amenable number.

1331113 is a deficient number, since it is larger than the sum of its proper divisors (190167).

1331113 is an equidigital number, since it uses as much as digits as its factorization.

1331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190166.

The product of its digits is 27, while the sum is 13.

The square root of 1331113 is about 1153.7387052535. The cubic root of 1331113 is about 110.0031128596.

Adding to 1331113 its reverse (3111331), we get a palindrome (4442444).

It can be divided in two parts, 1331 and 113, that added together give a square (1444 = 38²).

The spelling of 1331113 in words is "one million, three hundred thirty-one thousand, one hundred thirteen".