1323423211 has 4 divisors (see below), whose sum is σ = 1443734424. Its totient is φ = 1203112000.

The previous prime is 1323423203. The next prime is 1323423217. The reversal of 1323423211 is 1123243231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1123243231 = 11 ⋅102113021.

It is a cyclic number.

It is not a de Polignac number, because 1323423211 - 2³ = 1323423203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323423217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60155590 + ... + 60155611.

It is an arithmetic number, because the mean of its divisors is an integer number (360933606).

Almost surely, 2^1323423211 is an apocalyptic number.

1323423211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1323423211 is a deficient number, since it is larger than the sum of its proper divisors (120311213).

1323423211 is a wasteful number, since it uses less digits than its factorization.

1323423211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120311212.

The product of its digits is 864, while the sum is 22.

The square root of 1323423211 is about 36378.8841362678. The cubic root of 1323423211 is about 1097.9087570981.

Adding to 1323423211 its reverse (1123243231), we get a palindrome (2446666442).

The spelling of 1323423211 in words is "one billion, three hundred twenty-three million, four hundred twenty-three thousand, two hundred eleven".