12120002123 has 2 divisors, whose sum is σ = 12120002124. Its totient is φ = 12120002122.

The previous prime is 12120002107. The next prime is 12120002149. The reversal of 12120002123 is 32120002121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12120002123 - 2⁴ = 12120002107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120002098 and 12120002107.

It is not a weakly prime, because it can be changed into another prime (12120002023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060001061 + 6060001062.

It is an arithmetic number, because the mean of its divisors is an integer number (6060001062).

Almost surely, 2^12120002123 is an apocalyptic number.

12120002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120002123 is an equidigital number, since it uses as much as digits as its factorization.

12120002123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12120002123 its reverse (32120002121), we get a palindrome (44240004244).

The spelling of 12120002123 in words is "twelve billion, one hundred twenty million, two thousand, one hundred twenty-three".