1323331013 has 16 divisors (see below), whose sum is σ = 1420554240. Its totient is φ = 1229810736.

The previous prime is 1323330997. The next prime is 1323331027. The reversal of 1323331013 is 3101333231.

It is not a de Polignac number, because 1323331013 - 2⁴ = 1323330997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323331033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145856 + ... + 154662.

It is an arithmetic number, because the mean of its divisors is an integer number (88784640).

Almost surely, 2^1323331013 is an apocalyptic number.

It is an amenable number.

1323331013 is a deficient number, since it is larger than the sum of its proper divisors (97223227).

1323331013 is a wasteful number, since it uses less digits than its factorization.

1323331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1323331013 is about 36377.6169230476. The cubic root of 1323331013 is about 1097.8832607586.

Adding to 1323331013 its reverse (3101333231), we get a palindrome (4424664244).

The spelling of 1323331013 in words is "one billion, three hundred twenty-three million, three hundred thirty-one thousand, thirteen".