1320775003 has 8 divisors (see below), whose sum is σ = 1344092400. Its totient is φ = 1297488768.

The previous prime is 1320774997. The next prime is 1320775013. The reversal of 1320775003 is 3005770231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320775003 - 2⁹ = 1320774491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320775013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87975 + ... + 101887.

It is an arithmetic number, because the mean of its divisors is an integer number (168011550).

Almost surely, 2^1320775003 is an apocalyptic number.

1320775003 is a deficient number, since it is larger than the sum of its proper divisors (23317397).

1320775003 is a wasteful number, since it uses less digits than its factorization.

1320775003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15581.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 1320775003 is about 36342.4683118800. The cubic root of 1320775003 is about 1097.1759524007.

The spelling of 1320775003 in words is "one billion, three hundred twenty million, seven hundred seventy-five thousand, three".