12121123000 has 64 divisors (see below), whose sum is σ = 32415364800. Its totient is φ = 4155811200.

The previous prime is 12121122943. The next prime is 12121123037. The reversal of 12121123000 is 32112121.

12121123000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121123000² (a number of 21 digits) contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 858795 + ... + 872794.

It is an arithmetic number, because the mean of its divisors is an integer number (506490075).

Almost surely, 2^12121123000 is an apocalyptic number.

12121123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121123000 is an abundant number, since it is smaller than the sum of its proper divisors (20294241800).

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

12121123000 is a wasteful number, since it uses less digits than its factorization.

12121123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731617 (or 1731603 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12121123000 its reverse (32112121), we get a palindrome (12153235121).

The spelling of 12121123000 in words is "twelve billion, one hundred twenty-one million, one hundred twenty-three thousand".