1324011220 has 96 divisors (see below), whose sum is σ = 3239083008. Its totient is φ = 445243392.

The previous prime is 1324011217. The next prime is 1324011223. The reversal of 1324011220 is 221104231.

It is an interprime number because it is at equal distance from previous prime (1324011217) and next prime (1324011223).

It is a junction number, because it is equal to n+sod(n) for n = 1324011194 and 1324011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324011223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3607477 + ... + 3607843.

It is an arithmetic number, because the mean of its divisors is an integer number (33740448).

Almost surely, 2^1324011220 is an apocalyptic number.

1324011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1324011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619541504).

1324011220 is an abundant number, since it is smaller than the sum of its proper divisors (1915071788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1324011220 is a wasteful number, since it uses less digits than its factorization.

1324011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1324011220 is about 36386.9649737375. The cubic root of 1324011220 is about 1098.0713366458.

Adding to 1324011220 its reverse (221104231), we get a palindrome (1545115451).

It can be divided in two parts, 1324011 and 220, that added together give a palindrome (1324231).

The spelling of 1324011220 in words is "one billion, three hundred twenty-four million, eleven thousand, two hundred twenty".