1212303303 has 48 divisors (see below), whose sum is σ = 1971496800. Its totient is φ = 713318400.

The previous prime is 1212303283. The next prime is 1212303307. The reversal of 1212303303 is 3033032121.

It is not a de Polignac number, because 1212303303 - 2⁵ = 1212303271 is a prime.

1212303303 is a modest number, since divided by 303303 gives 1212 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212303307) 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 47 ways as a sum of consecutive naturals, for example, 291543 + ... + 295671.

It is an arithmetic number, because the mean of its divisors is an integer number (41072850).

Almost surely, 2^1212303303 is an apocalyptic number.

1212303303 is a deficient number, since it is larger than the sum of its proper divisors (759193497).

1212303303 is a wasteful number, since it uses less digits than its factorization.

1212303303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272 (or 4269 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1212303303 is about 34818.1461740857. The cubic root of 1212303303 is about 1066.2779527743.

Adding to 1212303303 its reverse (3033032121), we get a palindrome (4245335424).

The spelling of 1212303303 in words is "one billion, two hundred twelve million, three hundred three thousand, three hundred three".