30012012203 has 4 divisors (see below), whose sum is σ = 30015398160. Its totient is φ = 30008626248.

The previous prime is 30012012181. The next prime is 30012012221. The reversal of 30012012203 is 30221021003.

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-30012012203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012012253) 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, 1679648 + ... + 1697421.

It is an arithmetic number, because the mean of its divisors is an integer number (7503849540).

Almost surely, 2^30012012203 is an apocalyptic number.

30012012203 is a deficient number, since it is larger than the sum of its proper divisors (3385957).

30012012203 is an equidigital number, since it uses as much as digits as its factorization.

30012012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385956.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30012012203 its reverse (30221021003), we get a palindrome (60233033206).

The spelling of 30012012203 in words is "thirty billion, twelve million, twelve thousand, two hundred three".