1321353 has 20 divisors (see below), whose sum is σ = 2154768. Its totient is φ = 800280.

The previous prime is 1321351. The next prime is 1321357. The reversal of 1321353 is 3531231.

It is not a de Polignac number, because 1321353 - 2¹ = 1321351 is a prime.

It is a Curzon number.

1321353 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1321351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150 + ... + 1632.

2^1321353 is an apocalyptic number.

It is an amenable number.

1321353 is a deficient number, since it is larger than the sum of its proper divisors (833415).

1321353 is a wasteful number, since it uses less digits than its factorization.

1321353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1497 counting only the distinct ones).

The product of its digits is 270, while the sum is 18.

The square root of 1321353 is about 1149.5011961716. The cubic root of 1321353 is about 109.7335977619.

Adding to 1321353 its reverse (3531231), we get a palindrome (4852584).

It can be divided in two parts, 132 and 1353, that added together give a triangular number (1485 = T₅₄).

The spelling of 1321353 in words is "one million, three hundred twenty-one thousand, three hundred fifty-three".