12123200001 has 16 divisors (see below), whose sum is σ = 17635737600. Its totient is φ = 7346563920.

The previous prime is 12123199967. The next prime is 12123200003. The reversal of 12123200001 is 10000232121.

It is not a de Polignac number, because 12123200001 - 2⁷ = 12123199873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12123200001.

It is not an unprimeable number, because it can be changed into a prime (12123200003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408016 + ... + 436718.

It is an arithmetic number, because the mean of its divisors is an integer number (1102233600).

Almost surely, 2^12123200001 is an apocalyptic number.

12123200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12123200001 is a deficient number, since it is larger than the sum of its proper divisors (5512537599).

12123200001 is a wasteful number, since it uses less digits than its factorization.

12123200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41516.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12123200001 its reverse (10000232121), we get a palindrome (22123432122).

The spelling of 12123200001 in words is "twelve billion, one hundred twenty-three million, two hundred thousand, one".