1320533104 has 20 divisors (see below), whose sum is σ = 2791127160. Its totient is φ = 600242240.

The previous prime is 1320533099. The next prime is 1320533113. The reversal of 1320533104 is 4013350231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3751339 + ... + 3751690.

It is an arithmetic number, because the mean of its divisors is an integer number (139556358).

Almost surely, 2^1320533104 is an apocalyptic number.

It is an amenable number.

1320533104 is an abundant number, since it is smaller than the sum of its proper divisors (1470594056).

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

1320533104 is a wasteful number, since it uses less digits than its factorization.

1320533104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503048 (or 7503042 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1320533104 is about 36339.1401109052. The cubic root of 1320533104 is about 1097.1089659799.

Adding to 1320533104 its reverse (4013350231), we get a palindrome (5333883335).

The spelling of 1320533104 in words is "one billion, three hundred twenty million, five hundred thirty-three thousand, one hundred four".