12123550602 has 24 divisors (see below), whose sum is σ = 26401039236. Its totient is φ = 4020668736.

The previous prime is 12123550589. The next prime is 12123550619. The reversal of 12123550602 is 20605532121.

It is a happy number.

12123550602 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 3 + 5 + 50 + 602 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11210362641 + 913187961 = 105879^2 + 30219^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1705923 + ... + 1713014.

Almost surely, 2^12123550602 is an apocalyptic number.

12123550602 is an abundant number, since it is smaller than the sum of its proper divisors (14277488634).

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

12123550602 is a wasteful number, since it uses less digits than its factorization.

12123550602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419142 (or 3419139 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 12123550602 in words is "twelve billion, one hundred twenty-three million, five hundred fifty thousand, six hundred two".