123213420104 has 8 divisors (see below), whose sum is σ = 231025162710. Its totient is φ = 61606710048.

The previous prime is 123213420089. The next prime is 123213420149. The reversal of 123213420104 is 401024312321.

123213420104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 110554920004 + 12658500100 = 332498^2 + 112510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 123213420104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7700838749 + ... + 7700838764.

Almost surely, 2^123213420104 is an apocalyptic number.

It is an amenable number.

123213420104 is a deficient number, since it is larger than the sum of its proper divisors (107811742606).

123213420104 is a wasteful number, since it uses less digits than its factorization.

123213420104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15401677519 (or 15401677515 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 123213420104 its reverse (401024312321), we get a palindrome (524237732425).

The spelling of 123213420104 in words is "one hundred twenty-three billion, two hundred thirteen million, four hundred twenty thousand, one hundred four".