1324311013 has 4 divisors (see below), whose sum is σ = 1369976940. Its totient is φ = 1278645088.

The previous prime is 1324311007. The next prime is 1324311047. The reversal of 1324311013 is 3101134231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3101134231 = 13 ⋅238548787.

It can be written as a sum of positive squares in 2 ways, for example, as 540423009 + 783888004 = 23247^2 + 27998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324311013 - 2²¹ = 1322213861 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 (1324311083) 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 3 ways as a sum of consecutive naturals, for example, 22832920 + ... + 22832977.

It is an arithmetic number, because the mean of its divisors is an integer number (342494235).

Almost surely, 2^1324311013 is an apocalyptic number.

It is an amenable number.

1324311013 is a deficient number, since it is larger than the sum of its proper divisors (45665927).

1324311013 is an equidigital number, since it uses as much as digits as its factorization.

1324311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45665926.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1324311013 is about 36391.0842515031. The cubic root of 1324311013 is about 1098.1542083648.

Adding to 1324311013 its reverse (3101134231), we get a palindrome (4425445244).

The spelling of 1324311013 in words is "one billion, three hundred twenty-four million, three hundred eleven thousand, thirteen".