1320010003 has 4 divisors (see below), whose sum is σ = 1421549248. Its totient is φ = 1218470760.

The previous prime is 1320009989. The next prime is 1320010019. The reversal of 1320010003 is 3000100231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000100231 = 61 ⋅49181971.

It is not a de Polignac number, because 1320010003 - 2¹³ = 1320001811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320010063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50769603 + ... + 50769628.

It is an arithmetic number, because the mean of its divisors is an integer number (355387312).

Almost surely, 2^1320010003 is an apocalyptic number.

1320010003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1320010003 is a deficient number, since it is larger than the sum of its proper divisors (101539245).

1320010003 is a wasteful number, since it uses less digits than its factorization.

1320010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101539244.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1320010003 is about 36331.9419106659. The cubic root of 1320010003 is about 1096.9640814149.

Adding to 1320010003 its reverse (3000100231), we get a palindrome (4320110234).

The spelling of 1320010003 in words is "one billion, three hundred twenty million, ten thousand, three".