1320131120 has 160 divisors (see below), whose sum is σ = 3920749056. Its totient is φ = 401356800.

The previous prime is 1320131119. The next prime is 1320131123. The reversal of 1320131120 is 211310231.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1320131095 and 1320131104.

It is not an unprimeable number, because it can be changed into a prime (1320131123) 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, 249947 + ... + 255173.

Almost surely, 2^1320131120 is an apocalyptic number.

1320131120 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 1320131120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960374528).

1320131120 is an abundant number, since it is smaller than the sum of its proper divisors (2600617936).

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

1320131120 is a wasteful number, since it uses less digits than its factorization.

1320131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299 (or 5293 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1320131120 is about 36333.6086839719. The cubic root of 1320131120 is about 1096.9976308918.

Adding to 1320131120 its reverse (211310231), we get a palindrome (1531441351).

The spelling of 1320131120 in words is "one billion, three hundred twenty million, one hundred thirty-one thousand, one hundred twenty".