2200400123 has 2 divisors, whose sum is σ = 2200400124. Its totient is φ = 2200400122.

The previous prime is 2200400107. The next prime is 2200400129. The reversal of 2200400123 is 3210040022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2200400123 - 2⁴ = 2200400107 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200400098 and 2200400107.

It is not a weakly prime, because it can be changed into another prime (2200400129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100200061 + 1100200062.

It is an arithmetic number, because the mean of its divisors is an integer number (1100200062).

Almost surely, 2^2200400123 is an apocalyptic number.

2200400123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200400123 is an equidigital number, since it uses as much as digits as its factorization.

2200400123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2200400123 is about 46908.4227298254. The cubic root of 2200400123 is about 1300.6702900341.

Adding to 2200400123 its reverse (3210040022), we get a palindrome (5410440145).

The spelling of 2200400123 in words is "two billion, two hundred million, four hundred thousand, one hundred twenty-three".