1321233 has 8 divisors (see below), whose sum is σ = 1809408. Its totient is φ = 856944.

The previous prime is 1321219. The next prime is 1321247. The reversal of 1321233 is 3321231.

It is an interprime number because it is at equal distance from previous prime (1321219) and next prime (1321247).

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

It is not a de Polignac number, because 1321233 - 2⁶ = 1321169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5841 + ... + 6062.

It is an arithmetic number, because the mean of its divisors is an integer number (226176).

2^1321233 is an apocalyptic number.

It is an amenable number.

1321233 is a deficient number, since it is larger than the sum of its proper divisors (488175).

1321233 is a wasteful number, since it uses less digits than its factorization.

1321233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11943.

The product of its digits is 108, while the sum is 15.

The square root of 1321233 is about 1149.4489984336. The cubic root of 1321233 is about 109.7302758057.

Subtracting from 1321233 its product of digits (108), we obtain a triangular number (1321125 = T₁₆₂₅).

Adding to 1321233 its reverse (3321231), we get a palindrome (4642464).

The spelling of 1321233 in words is "one million, three hundred twenty-one thousand, two hundred thirty-three".