1121331 has 4 divisors (see below), whose sum is σ = 1495112. Its totient is φ = 747552.

The previous prime is 1121317. The next prime is 1121333. The reversal of 1121331 is 1331211.

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

It is not a de Polignac number, because 1121331 - 2⁷ = 1121203 is a prime.

It is a super-2 number, since 2×1121331² = 2514766423122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121333) 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, 186886 + ... + 186891.

It is an arithmetic number, because the mean of its divisors is an integer number (373778).

2^1121331 is an apocalyptic number.

1121331 is a deficient number, since it is larger than the sum of its proper divisors (373781).

1121331 is an equidigital number, since it uses as much as digits as its factorization.

1121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373780.

The product of its digits is 18, while the sum is 12.

The square root of 1121331 is about 1058.9291761020. The cubic root of 1121331 is about 103.8910039044.

Adding to 1121331 its reverse (1331211), we get a palindrome (2452542).

The spelling of 1121331 in words is "one million, one hundred twenty-one thousand, three hundred thirty-one".