1233323128 has 8 divisors (see below), whose sum is σ = 2312480880. Its totient is φ = 616661560.

The previous prime is 1233323083. The next prime is 1233323129. The reversal of 1233323128 is 8213233321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1233323096 and 1233323105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233323129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77082688 + ... + 77082703.

It is an arithmetic number, because the mean of its divisors is an integer number (289060110).

Almost surely, 2^1233323128 is an apocalyptic number.

It is an amenable number.

1233323128 is a deficient number, since it is larger than the sum of its proper divisors (1079157752).

1233323128 is a wasteful number, since it uses less digits than its factorization.

1233323128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154165397 (or 154165393 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 1233323128 is about 35118.7005454359. The cubic root of 1233323128 is about 1072.4053170490.

Adding to 1233323128 its reverse (8213233321), we get a palindrome (9446556449).

The spelling of 1233323128 in words is "one billion, two hundred thirty-three million, three hundred twenty-three thousand, one hundred twenty-eight".