1212030203 has 4 divisors (see below), whose sum is σ = 1222756248. Its totient is φ = 1201304160.

The previous prime is 1212030179. The next prime is 1212030217. The reversal of 1212030203 is 3020302121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3020302121 = 29 ⋅104148349.

It is a cyclic number.

It is not a de Polignac number, because 1212030203 - 2⁶ = 1212030139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212030223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5362853 + ... + 5363078.

It is an arithmetic number, because the mean of its divisors is an integer number (305689062).

Almost surely, 2^1212030203 is an apocalyptic number.

1212030203 is a deficient number, since it is larger than the sum of its proper divisors (10726045).

1212030203 is a wasteful number, since it uses less digits than its factorization.

1212030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726044.

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

The square root of 1212030203 is about 34814.2241476096. The cubic root of 1212030203 is about 1066.1978786494.

Adding to 1212030203 its reverse (3020302121), we get a palindrome (4232332324).

The spelling of 1212030203 in words is "one billion, two hundred twelve million, thirty thousand, two hundred three".