12000010123 has 2 divisors, whose sum is σ = 12000010124. Its totient is φ = 12000010122.

The previous prime is 12000010111. The next prime is 12000010189. The reversal of 12000010123 is 32101000021.

It is a weak prime.

It is an emirp because it is prime and its reverse (32101000021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000010123 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000010223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000005061 + 6000005062.

It is an arithmetic number, because the mean of its divisors is an integer number (6000005062).

Almost surely, 2^12000010123 is an apocalyptic number.

12000010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000010123 is an equidigital number, since it uses as much as digits as its factorization.

12000010123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12000010123 its reverse (32101000021), we get a palindrome (44101010144).

The spelling of 12000010123 in words is "twelve billion, ten thousand, one hundred twenty-three".