1320801120 has 96 divisors (see below), whose sum is σ = 4622819040. Its totient is φ = 352212480.

The previous prime is 1320801103. The next prime is 1320801121. The reversal of 1320801120 is 211080231.

1320801120 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1320801093 and 1320801102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320801121) 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, 148551 + ... + 157190.

It is an arithmetic number, because the mean of its divisors is an integer number (48154365).

Almost surely, 2^1320801120 is an apocalyptic number.

1320801120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320801120 is an abundant number, since it is smaller than the sum of its proper divisors (3302017920).

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

1320801120 is a wasteful number, since it uses less digits than its factorization.

1320801120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305765 (or 305751 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1320801120 is about 36342.8276280204. The cubic root of 1320801120 is about 1097.1831842041.

Adding to 1320801120 its reverse (211080231), we get a palindrome (1531881351).

The spelling of 1320801120 in words is "one billion, three hundred twenty million, eight hundred one thousand, one hundred twenty".