1320333140 has 24 divisors (see below), whose sum is σ = 3168799872. Its totient is φ = 452685600.

The previous prime is 1320333137. The next prime is 1320333143. The reversal of 1320333140 is 413330231.

It is an interprime number because it is at equal distance from previous prime (1320333137) and next prime (1320333143).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320333143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4715336 + ... + 4715615.

It is an arithmetic number, because the mean of its divisors is an integer number (132033328).

Almost surely, 2^1320333140 is an apocalyptic number.

1320333140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320333140 is an abundant number, since it is smaller than the sum of its proper divisors (1848466732).

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

1320333140 is a wasteful number, since it uses less digits than its factorization.

1320333140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430967 (or 9430965 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1320333140 is about 36336.3886482958. The cubic root of 1320333140 is about 1097.0535859795.

Adding to 1320333140 its reverse (413330231), we get a palindrome (1733663371).

The spelling of 1320333140 in words is "one billion, three hundred twenty million, three hundred thirty-three thousand, one hundred forty".