30120200203 has 4 divisors (see below), whose sum is σ = 30501468640. Its totient is φ = 29738931768.

The previous prime is 30120200179. The next prime is 30120200221. The reversal of 30120200203 is 30200202103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30120200203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120200503) 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, 190634100 + ... + 190634257.

It is an arithmetic number, because the mean of its divisors is an integer number (7625367160).

Almost surely, 2^30120200203 is an apocalyptic number.

30120200203 is a deficient number, since it is larger than the sum of its proper divisors (381268437).

30120200203 is an equidigital number, since it uses as much as digits as its factorization.

30120200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381268436.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30120200203 its reverse (30200202103), we get a palindrome (60320402306).

The spelling of 30120200203 in words is "thirty billion, one hundred twenty million, two hundred thousand, two hundred three".