1212133323 has 16 divisors (see below), whose sum is σ = 1636390656. Its totient is φ = 798045600.

The previous prime is 1212133309. The next prime is 1212133331. The reversal of 1212133323 is 3233312121.

It is not a de Polignac number, because 1212133323 - 2⁸ = 1212133067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212133323.

It is not an unprimeable number, because it can be changed into a prime (1212133333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70636 + ... + 86102.

It is an arithmetic number, because the mean of its divisors is an integer number (102274416).

Almost surely, 2^1212133323 is an apocalyptic number.

1212133323 is a deficient number, since it is larger than the sum of its proper divisors (424257333).

1212133323 is a wasteful number, since it uses less digits than its factorization.

1212133323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15794.

The product of its digits is 648, while the sum is 21.

The square root of 1212133323 is about 34815.7051199599. The cubic root of 1212133323 is about 1066.2281153016.

Adding to 1212133323 its reverse (3233312121), we get a palindrome (4445445444).

The spelling of 1212133323 in words is "one billion, two hundred twelve million, one hundred thirty-three thousand, three hundred twenty-three".