1320003213 has 16 divisors (see below), whose sum is σ = 1798177536. Its totient is φ = 861007680.

The previous prime is 1320003197. The next prime is 1320003221. The reversal of 1320003213 is 3123000231.

It is not a de Polignac number, because 1320003213 - 2⁴ = 1320003197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320003192 and 1320003201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320003613) 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 15 ways as a sum of consecutive naturals, for example, 47043 + ... + 69663.

It is an arithmetic number, because the mean of its divisors is an integer number (112386096).

Almost surely, 2^1320003213 is an apocalyptic number.

It is an amenable number.

1320003213 is a deficient number, since it is larger than the sum of its proper divisors (478174323).

1320003213 is a wasteful number, since it uses less digits than its factorization.

1320003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23044.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1320003213 is about 36331.8484666002. The cubic root of 1320003213 is about 1096.9622005203.

Adding to 1320003213 its reverse (3123000231), we get a palindrome (4443003444).

The spelling of 1320003213 in words is "one billion, three hundred twenty million, three thousand, two hundred thirteen".