30203203213 has 16 divisors (see below), whose sum is σ = 31299957360. Its totient is φ = 29124403200.

The previous prime is 30203203207. The next prime is 30203203231. The reversal of 30203203213 is 31230230203.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3640070889 + 26563132324 = 60333^2 + 162982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30203203213 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 (30203203013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3292353 + ... + 3301513.

It is an arithmetic number, because the mean of its divisors is an integer number (1956247335).

Almost surely, 2^30203203213 is an apocalyptic number.

It is an amenable number.

30203203213 is a deficient number, since it is larger than the sum of its proper divisors (1096754147).

30203203213 is an equidigital number, since it uses as much as digits as its factorization.

30203203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30203203213 its reverse (31230230203), we get a palindrome (61433433416).

The spelling of 30203203213 in words is "thirty billion, two hundred three million, two hundred three thousand, two hundred thirteen".