230123012111 has 2 divisors, whose sum is σ = 230123012112. Its totient is φ = 230123012110.

The previous prime is 230123012087. The next prime is 230123012137. The reversal of 230123012111 is 111210321032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230123012111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230123012111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230123012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115061506055 + 115061506056.

It is an arithmetic number, because the mean of its divisors is an integer number (115061506056).

Almost surely, 2^230123012111 is an apocalyptic number.

230123012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

230123012111 is an equidigital number, since it uses as much as digits as its factorization.

230123012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 230123012111 its reverse (111210321032), we get a palindrome (341333333143).

The spelling of 230123012111 in words is "two hundred thirty billion, one hundred twenty-three million, twelve thousand, one hundred eleven".