123054215212 has 6 divisors (see below), whose sum is σ = 215344876628. Its totient is φ = 61527107604.

The previous prime is 123054215191. The next prime is 123054215227. The reversal of 123054215212 is 212512450321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15381776898 + ... + 15381776905.

Almost surely, 2^123054215212 is an apocalyptic number.

It is an amenable number.

123054215212 is a deficient number, since it is larger than the sum of its proper divisors (92290661416).

123054215212 is a wasteful number, since it uses less digits than its factorization.

123054215212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30763553807 (or 30763553805 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 123054215212 its reverse (212512450321), we get a palindrome (335566665533).

The spelling of 123054215212 in words is "one hundred twenty-three billion, fifty-four million, two hundred fifteen thousand, two hundred twelve".