1131411 has 4 divisors (see below), whose sum is σ = 1508552. Its totient is φ = 754272.

The previous prime is 1131397. The next prime is 1131413. The reversal of 1131411 is 1141311.

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

It is not a de Polignac number, because 1131411 - 2⁵ = 1131379 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131413) 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, 188566 + ... + 188571.

It is an arithmetic number, because the mean of its divisors is an integer number (377138).

2^1131411 is an apocalyptic number.

1131411 is a deficient number, since it is larger than the sum of its proper divisors (377141).

1131411 is an equidigital number, since it uses as much as digits as its factorization.

1131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377140.

The product of its digits is 12, while the sum is 12.

The square root of 1131411 is about 1063.6780527961. The cubic root of 1131411 is about 104.2013787958.

Adding to 1131411 its reverse (1141311), we get a palindrome (2272722).

It can be divided in two parts, 11314 and 11, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1131411 in words is "one million, one hundred thirty-one thousand, four hundred eleven".