123403142212 has 12 divisors (see below), whose sum is σ = 246806284480. Its totient is φ = 52887060936.

The previous prime is 123403142209. The next prime is 123403142227. The reversal of 123403142212 is 212241304321.

123403142212 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2203627512 + ... + 2203627567.

Almost surely, 2^123403142212 is an apocalyptic number.

It is an amenable number.

123403142212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123403142212 is a wasteful number, since it uses less digits than its factorization.

123403142212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407255090 (or 4407255088 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 123403142212 its reverse (212241304321), we get a palindrome (335644446533).

The spelling of 123403142212 in words is "one hundred twenty-three billion, four hundred three million, one hundred forty-two thousand, two hundred twelve".