12010012123 has 2 divisors, whose sum is σ = 12010012124. Its totient is φ = 12010012122.

The previous prime is 12010012099. The next prime is 12010012141. The reversal of 12010012123 is 32121001021.

It is a strong prime.

It is an emirp because it is prime and its reverse (32121001021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12010012123 is a prime.

It is not a weakly prime, because it can be changed into another prime (12010012153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005006061 + 6005006062.

It is an arithmetic number, because the mean of its divisors is an integer number (6005006062).

Almost surely, 2^12010012123 is an apocalyptic number.

12010012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010012123 is an equidigital number, since it uses as much as digits as its factorization.

12010012123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12010012123 its reverse (32121001021), we get a palindrome (44131013144).

The spelling of 12010012123 in words is "twelve billion, ten million, twelve thousand, one hundred twenty-three".