123133531332 has 24 divisors (see below), whose sum is σ = 328356083776. Its totient is φ = 35181008928.

The previous prime is 123133531321. The next prime is 123133531337. The reversal of 123133531332 is 233135331321.

It is a self number, because there is not a number n which added to its sum of digits gives 123133531332.

It is not an unprimeable number, because it can be changed into a prime (123133531337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732937603 + ... + 732937770.

Almost surely, 2^123133531332 is an apocalyptic number.

123133531332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123133531332 is an abundant number, since it is smaller than the sum of its proper divisors (205222552444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123133531332 is a wasteful number, since it uses less digits than its factorization.

123133531332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465875387 (or 1465875385 counting only the distinct ones).

The product of its digits is 14580, while the sum is 30.

Adding to 123133531332 its reverse (233135331321), we get a palindrome (356268862653).

The spelling of 123133531332 in words is "one hundred twenty-three billion, one hundred thirty-three million, five hundred thirty-one thousand, three hundred thirty-two".