1201323 has 4 divisors (see below), whose sum is σ = 1601768. Its totient is φ = 800880.

The previous prime is 1201309. The next prime is 1201327. The reversal of 1201323 is 3231021.

It is a happy number.

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

It is not a de Polignac number, because 1201323 - 2⁴ = 1201307 is a prime.

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 = 1201299 and 1201308.

It is not an unprimeable number, because it can be changed into a prime (1201327) 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, 200218 + ... + 200223.

It is an arithmetic number, because the mean of its divisors is an integer number (400442).

2^1201323 is an apocalyptic number.

1201323 is a deficient number, since it is larger than the sum of its proper divisors (400445).

1201323 is an equidigital number, since it uses as much as digits as its factorization.

1201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400444.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1201323 is about 1096.0488127816. The cubic root of 1201323 is about 106.3048952776.

Adding to 1201323 its reverse (3231021), we get a palindrome (4432344).

The spelling of 1201323 in words is "one million, two hundred one thousand, three hundred twenty-three".