1330023 has 4 divisors (see below), whose sum is σ = 1773368. Its totient is φ = 886680.

The previous prime is 1330009. The next prime is 1330031. The reversal of 1330023 is 3200331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200331 = 3 ⋅1066777.

It is not a de Polignac number, because 1330023 - 2⁸ = 1329767 is a prime.

It is a super-2 number, since 2×1330023² = 3537922361058, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1329990 and 1330008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330003) 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, 221668 + ... + 221673.

It is an arithmetic number, because the mean of its divisors is an integer number (443342).

2^1330023 is an apocalyptic number.

1330023 is a deficient number, since it is larger than the sum of its proper divisors (443345).

1330023 is an equidigital number, since it uses as much as digits as its factorization.

1330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443344.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 1330023 is about 1153.2662311886. The cubic root of 1330023 is about 109.9730788113.

Adding to 1330023 its reverse (3200331), we get a palindrome (4530354).

The spelling of 1330023 in words is "one million, three hundred thirty thousand, twenty-three".