12123323552 has 48 divisors (see below), whose sum is σ = 24918062400. Its totient is φ = 5795192832.

The previous prime is 12123323539. The next prime is 12123323623. The reversal of 12123323552 is 25532332121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2425568 + ... + 2430560.

It is an arithmetic number, because the mean of its divisors is an integer number (519126300).

Almost surely, 2^12123323552 is an apocalyptic number.

It is an amenable number.

12123323552 is an abundant number, since it is smaller than the sum of its proper divisors (12794738848).

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

12123323552 is a wasteful number, since it uses less digits than its factorization.

12123323552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325 (or 8317 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

Adding to 12123323552 its reverse (25532332121), we get a palindrome (37655655673).

The spelling of 12123323552 in words is "twelve billion, one hundred twenty-three million, three hundred twenty-three thousand, five hundred fifty-two".