1323203211 has 48 divisors (see below), whose sum is σ = 2228260320. Its totient is φ = 747740160.

The previous prime is 1323203201. The next prime is 1323203251. The reversal of 1323203211 is 1123023231.

1323203211 is a `hidden beast` number, since 1 + 323 + 20 + 321 + 1 = 666.

It is not a de Polignac number, because 1323203211 - 2⁷ = 1323203083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323203201) 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 47 ways as a sum of consecutive naturals, for example, 179841 + ... + 187053.

It is an arithmetic number, because the mean of its divisors is an integer number (46422090).

Almost surely, 2^1323203211 is an apocalyptic number.

1323203211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1323203211 is a deficient number, since it is larger than the sum of its proper divisors (905057109).

1323203211 is a wasteful number, since it uses less digits than its factorization.

1323203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7356 (or 7353 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1323203211 is about 36375.8602784869. The cubic root of 1323203211 is about 1097.8479165672.

Adding to 1323203211 its reverse (1123023231), we get a palindrome (2446226442).

It can be divided in two parts, 132320 and 3211, that added together give a palindrome (135531).

The spelling of 1323203211 in words is "one billion, three hundred twenty-three million, two hundred three thousand, two hundred eleven".