12321000123 has 16 divisors (see below), whose sum is σ = 16790593536. Its totient is φ = 8034526080.

The previous prime is 12321000103. The next prime is 12321000161. The reversal of 12321000123 is 32100012321.

It is not a de Polignac number, because 12321000123 - 2¹² = 12320996027 is a prime.

It is a super-3 number, since 3×12321000123³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12321000103) 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, 200686 + ... + 254787.

It is an arithmetic number, because the mean of its divisors is an integer number (1049412096).

Almost surely, 2^12321000123 is an apocalyptic number.

12321000123 is a deficient number, since it is larger than the sum of its proper divisors (4469593413).

12321000123 is a wasteful number, since it uses less digits than its factorization.

12321000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455674.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12321000123 its reverse (32100012321), we get a palindrome (44421012444).

The spelling of 12321000123 in words is "twelve billion, three hundred twenty-one million, one hundred twenty-three", and thus it is an aban number.