123300221312 has 16 divisors (see below), whose sum is σ = 245637159900. Its totient is φ = 61650110592.

The previous prime is 123300221309. The next prime is 123300221323. The reversal of 123300221312 is 213122003321.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 481641362 + ... + 481641617.

Almost surely, 2^123300221312 is an apocalyptic number.

It is an amenable number.

123300221312 is a deficient number, since it is larger than the sum of its proper divisors (122336938588).

123300221312 is an frugal number, since it uses more digits than its factorization.

123300221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963282993 (or 963282981 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123300221312 its reverse (213122003321), we get a palindrome (336422224633).

The spelling of 123300221312 in words is "one hundred twenty-three billion, three hundred million, two hundred twenty-one thousand, three hundred twelve".