213120032303 has 12 divisors (see below), whose sum is σ = 227970157800. Its totient is φ = 199113133296.

The previous prime is 213120032243. The next prime is 213120032309. The reversal of 213120032303 is 303230021312.

It is not a de Polignac number, because 213120032303 - 2¹⁰ = 213120031279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120032309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4661828 + ... + 4707321.

It is an arithmetic number, because the mean of its divisors is an integer number (18997513150).

Almost surely, 2^213120032303 is an apocalyptic number.

213120032303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213120032303 is a deficient number, since it is larger than the sum of its proper divisors (14850125497).

213120032303 is an equidigital number, since it uses as much as digits as its factorization.

213120032303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369238 (or 9369215 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213120032303 its reverse (303230021312), we get a palindrome (516350053615).

The spelling of 213120032303 in words is "two hundred thirteen billion, one hundred twenty million, thirty-two thousand, three hundred three".