1323211331 has 8 divisors (see below), whose sum is σ = 1426667760. Its totient is φ = 1219993632.

The previous prime is 1323211301. The next prime is 1323211381. The reversal of 1323211331 is 1331123231.

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

It is not a de Polignac number, because 1323211331 - 2²⁶ = 1256102467 is a prime.

It is a super-2 number, since 2×1323211331² = 3501776452973583122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323211301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48080 + ... + 70413.

It is an arithmetic number, because the mean of its divisors is an integer number (178333470).

Almost surely, 2^1323211331 is an apocalyptic number.

1323211331 is a deficient number, since it is larger than the sum of its proper divisors (103456429).

1323211331 is a wasteful number, since it uses less digits than its factorization.

1323211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119365.

The product of its digits is 324, while the sum is 20.

The square root of 1323211331 is about 36375.9718907963. The cubic root of 1323211331 is about 1097.8501622558.

Adding to 1323211331 its reverse (1331123231), we get a palindrome (2654334562).

The spelling of 1323211331 in words is "one billion, three hundred twenty-three million, two hundred eleven thousand, three hundred thirty-one".