231202310123 has 2 divisors, whose sum is σ = 231202310124. Its totient is φ = 231202310122.

The previous prime is 231202310117. The next prime is 231202310149. The reversal of 231202310123 is 321013202132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231202310123 - 2⁸ = 231202309867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231202310095 and 231202310104.

It is not a weakly prime, because it can be changed into another prime (231202312123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115601155061 + 115601155062.

It is an arithmetic number, because the mean of its divisors is an integer number (115601155062).

Almost surely, 2^231202310123 is an apocalyptic number.

231202310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

231202310123 is an equidigital number, since it uses as much as digits as its factorization.

231202310123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231202310123 its reverse (321013202132), we get a palindrome (552215512255).

The spelling of 231202310123 in words is "two hundred thirty-one billion, two hundred two million, three hundred ten thousand, one hundred twenty-three".