243102310123 has 2 divisors, whose sum is σ = 243102310124. Its totient is φ = 243102310122.

The previous prime is 243102310097. The next prime is 243102310133. The reversal of 243102310123 is 321013201342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243102310123 - 2¹³ = 243102301931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243102310094 and 243102310103.

It is not a weakly prime, because it can be changed into another prime (243102310133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121551155061 + 121551155062.

It is an arithmetic number, because the mean of its divisors is an integer number (121551155062).

Almost surely, 2^243102310123 is an apocalyptic number.

243102310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

243102310123 is an equidigital number, since it uses as much as digits as its factorization.

243102310123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 243102310123 its reverse (321013201342), we get a palindrome (564115511465).

The spelling of 243102310123 in words is "two hundred forty-three billion, one hundred two million, three hundred ten thousand, one hundred twenty-three".