123300001212 has 48 divisors (see below), whose sum is σ = 302943527040. Its totient is φ = 38923803072.

The previous prime is 123300001163. The next prime is 123300001213. The reversal of 123300001212 is 212100003321.

It is a junction number, because it is equal to n+sod(n) for n = 123300001191 and 123300001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123300001213) 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, 603403 + ... + 781469.

It is an arithmetic number, because the mean of its divisors is an integer number (6311323480).

Almost surely, 2^123300001212 is an apocalyptic number.

123300001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123300001212 is an abundant number, since it is smaller than the sum of its proper divisors (179643525828).

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

123300001212 is a wasteful number, since it uses less digits than its factorization.

123300001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181130 (or 181128 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123300001212 its reverse (212100003321), we get a palindrome (335400004533).

The spelling of 123300001212 in words is "one hundred twenty-three billion, three hundred million, one thousand, two hundred twelve".