12004123000 has 64 divisors (see below), whose sum is σ = 28112404320. Its totient is φ = 4797760000.

The previous prime is 12004122997. The next prime is 12004123057. The reversal of 12004123000 is 32140021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1446864 + ... + 1455136.

Almost surely, 2^12004123000 is an apocalyptic number.

12004123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12004123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14056202160).

12004123000 is an abundant number, since it is smaller than the sum of its proper divisors (16108281320).

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

12004123000 is a wasteful number, since it uses less digits than its factorization.

12004123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9745 (or 9731 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12004123000 its reverse (32140021), we get a palindrome (12036263021).

The spelling of 12004123000 in words is "twelve billion, four million, one hundred twenty-three thousand".