1331323 has 8 divisors (see below), whose sum is σ = 1557248. Its totient is φ = 1114344.

The previous prime is 1331299. The next prime is 1331327. The reversal of 1331323 is 3231331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331323 - 2¹³ = 1323131 is a prime.

1331323 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1331297 and 1331306.

It is not an unprimeable number, because it can be changed into a prime (1331327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911 + ... + 2512.

It is an arithmetic number, because the mean of its divisors is an integer number (194656).

2^1331323 is an apocalyptic number.

1331323 is a deficient number, since it is larger than the sum of its proper divisors (225925).

1331323 is an equidigital number, since it uses as much as digits as its factorization.

1331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473.

The product of its digits is 162, while the sum is 16.

The square root of 1331323 is about 1153.8297101392. The cubic root of 1331323 is about 110.0088973519.

Adding to 1331323 its reverse (3231331), we get a palindrome (4562654).

The spelling of 1331323 in words is "one million, three hundred thirty-one thousand, three hundred twenty-three".