1323331311 has 16 divisors (see below), whose sum is σ = 1777718016. Its totient is φ = 875598336.

The previous prime is 1323331309. The next prime is 1323331337. The reversal of 1323331311 is 1131333231.

It is not a de Polignac number, because 1323331311 - 2¹ = 1323331309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323331351) 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 15 ways as a sum of consecutive naturals, for example, 479311 + ... + 482063.

It is an arithmetic number, because the mean of its divisors is an integer number (111107376).

Almost surely, 2^1323331311 is an apocalyptic number.

1323331311 is a deficient number, since it is larger than the sum of its proper divisors (454386705).

1323331311 is a wasteful number, since it uses less digits than its factorization.

1323331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902.

The product of its digits is 486, while the sum is 21.

The square root of 1323331311 is about 36377.6210189726. The cubic root of 1323331311 is about 1097.8833431691.

Adding to 1323331311 its reverse (1131333231), we get a palindrome (2454664542).

It can be divided in two parts, 13233 and 31311, that added together give a palindrome (44544).

The spelling of 1323331311 in words is "one billion, three hundred twenty-three million, three hundred thirty-one thousand, three hundred eleven".