213021020303 has 8 divisors (see below), whose sum is σ = 262179717408. Its totient is φ = 168544103904.

The previous prime is 213021020291. The next prime is 213021020353. The reversal of 213021020303 is 303020120312.

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 213021020303 - 2¹⁰ = 213021019279 is a prime.

It is a super-2 number, since 2×213021020303² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213021020353) 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, 1170445076 + ... + 1170445257.

It is an arithmetic number, because the mean of its divisors is an integer number (32772464676).

Almost surely, 2^213021020303 is an apocalyptic number.

213021020303 is a deficient number, since it is larger than the sum of its proper divisors (49158697105).

213021020303 is a wasteful number, since it uses less digits than its factorization.

213021020303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340890353.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 213021020303 its reverse (303020120312), we get a palindrome (516041140615).

The spelling of 213021020303 in words is "two hundred thirteen billion, twenty-one million, twenty thousand, three hundred three".