30000000203 has 4 divisors (see below), whose sum is σ = 30184049448. Its totient is φ = 29815950960.

The previous prime is 30000000193. The next prime is 30000000221. The reversal of 30000000203 is 30200000003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30200000003 = 160373 ⋅188311.

It is a cyclic number.

It is not a de Polignac number, because 30000000203 - 2⁶ = 30000000139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30000000253) 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, 92024378 + ... + 92024703.

It is an arithmetic number, because the mean of its divisors is an integer number (7546012362).

Almost surely, 2^30000000203 is an apocalyptic number.

30000000203 is a deficient number, since it is larger than the sum of its proper divisors (184049245).

30000000203 is a wasteful number, since it uses less digits than its factorization.

30000000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184049244.

The product of its (nonzero) digits is 18, while the sum is 8.

Adding to 30000000203 its reverse (30200000003), we get a palindrome (60200000206).

The spelling of 30000000203 in words is "thirty billion, two hundred three", and thus it is an aban number.