1213103233 has 8 divisors (see below), whose sum is σ = 1217371040. Its totient is φ = 1208844000.

The previous prime is 1213103219. The next prime is 1213103239. The reversal of 1213103233 is 3323013121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213103233 is a prime.

It is a super-3 number, since 3×1213103233³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213103233.

It is not an unprimeable number, because it can be changed into a prime (1213103239) 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 7 ways as a sum of consecutive naturals, for example, 402733 + ... + 405733.

It is an arithmetic number, because the mean of its divisors is an integer number (152171380).

Almost surely, 2^1213103233 is an apocalyptic number.

It is an amenable number.

1213103233 is a deficient number, since it is larger than the sum of its proper divisors (4267807).

1213103233 is an equidigital number, since it uses as much as digits as its factorization.

1213103233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4287.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1213103233 is about 34829.6315369543. The cubic root of 1213103233 is about 1066.5124266020.

Adding to 1213103233 its reverse (3323013121), we get a palindrome (4536116354).

The spelling of 1213103233 in words is "one billion, two hundred thirteen million, one hundred three thousand, two hundred thirty-three".