123041621212 has 24 divisors (see below), whose sum is σ = 216753847632. Its totient is φ = 61112563200.

The previous prime is 123041621189. The next prime is 123041621221. The reversal of 123041621212 is 212126140321.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 734412 + ... + 886252.

It is an arithmetic number, because the mean of its divisors is an integer number (9031410318).

Almost surely, 2^123041621212 is an apocalyptic number.

It is an amenable number.

123041621212 is a deficient number, since it is larger than the sum of its proper divisors (93712226420).

123041621212 is a wasteful number, since it uses less digits than its factorization.

123041621212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153189 (or 153187 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 123041621212 its reverse (212126140321), we get a palindrome (335167761533).

The spelling of 123041621212 in words is "one hundred twenty-three billion, forty-one million, six hundred twenty-one thousand, two hundred twelve".