1212230303 has 4 divisors (see below), whose sum is σ = 1212310680. Its totient is φ = 1212149928.

The previous prime is 1212230287. The next prime is 1212230317. The reversal of 1212230303 is 3030322121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1212230303 - 2⁴ = 1212230287 is a prime.

It is a super-2 number, since 2×1212230303² = 2939004615022943618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10013 + ... + 50246.

It is an arithmetic number, because the mean of its divisors is an integer number (303077670).

Almost surely, 2^1212230303 is an apocalyptic number.

1212230303 is a deficient number, since it is larger than the sum of its proper divisors (80377).

1212230303 is an equidigital number, since it uses as much as digits as its factorization.

1212230303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80376.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1212230303 is about 34817.0978543589. The cubic root of 1212230303 is about 1066.2565500299.

Adding to 1212230303 its reverse (3030322121), we get a palindrome (4242552424).

The spelling of 1212230303 in words is "one billion, two hundred twelve million, two hundred thirty thousand, three hundred three".