12000001230 has 128 divisors (see below), whose sum is σ = 36708940800. Its totient is φ = 2732545152.

The previous prime is 12000001159. The next prime is 12000001231. The reversal of 12000001230 is 3210000021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000001231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 496609 + ... + 520211.

It is an arithmetic number, because the mean of its divisors is an integer number (286788600).

Almost surely, 2^12000001230 is an apocalyptic number.

12000001230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12000001230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18354470400).

12000001230 is an abundant number, since it is smaller than the sum of its proper divisors (24708939570).

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

12000001230 is a wasteful number, since it uses less digits than its factorization.

12000001230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23895 (or 23889 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12000001230 its reverse (3210000021), we get a palindrome (15210001251).

The spelling of 12000001230 in words is "twelve billion, one thousand, two hundred thirty".