30121200203 has 8 divisors (see below), whose sum is σ = 30728378160. Its totient is φ = 29517244000.

The previous prime is 30121200199. The next prime is 30121200293. The reversal of 30121200203 is 30200212103.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30121200203 - 2² = 30121200199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121200293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786548 + ... + 823953.

It is an arithmetic number, because the mean of its divisors is an integer number (3841047270).

Almost surely, 2^30121200203 is an apocalyptic number.

30121200203 is a deficient number, since it is larger than the sum of its proper divisors (607177957).

30121200203 is a wasteful number, since it uses less digits than its factorization.

30121200203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610877.

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

Adding to 30121200203 its reverse (30200212103), we get a palindrome (60321412306).

The spelling of 30121200203 in words is "thirty billion, one hundred twenty-one million, two hundred thousand, two hundred three".