1323331011 has 24 divisors (see below), whose sum is σ = 1995352944. Its totient is φ = 844292160.

The previous prime is 1323330997. The next prime is 1323331027. The reversal of 1323331011 is 1101333231.

It is a happy number.

1323331011 is a `hidden beast` number, since 1 + 323 + 331 + 0 + 11 = 666.

It is not a de Polignac number, because 1323331011 - 2⁵ = 1323330979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323331411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12261 + ... + 52886.

It is an arithmetic number, because the mean of its divisors is an integer number (83139706).

Almost surely, 2^1323331011 is an apocalyptic number.

1323331011 is a deficient number, since it is larger than the sum of its proper divisors (672021933).

1323331011 is a wasteful number, since it uses less digits than its factorization.

1323331011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65251 (or 65248 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1323331011 is about 36377.6168955582. The cubic root of 1323331011 is about 1097.8832602055.

Adding to 1323331011 its reverse (1101333231), we get a palindrome (2424664242).

It can be divided in two parts, 13233 and 31011, that added together give a palindrome (44244).

The spelling of 1323331011 in words is "one billion, three hundred twenty-three million, three hundred thirty-one thousand, eleven".