123100122203111 has 2 divisors, whose sum is σ = 123100122203112. Its totient is φ = 123100122203110.

The previous prime is 123100122203057. The next prime is 123100122203159. The reversal of 123100122203111 is 111302221001321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123100122203111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123100122203011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550061101555 + 61550061101556.

It is an arithmetic number, because the mean of its divisors is an integer number (61550061101556).

Almost surely, 2^{123100122203111} is an apocalyptic number.

123100122203111 is a deficient number, since it is larger than the sum of its proper divisors (1).

123100122203111 is an equidigital number, since it uses as much as digits as its factorization.

123100122203111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 123100122203111 its reverse (111302221001321), we get a palindrome (234402343204432).

The spelling of 123100122203111 in words is "one hundred twenty-three trillion, one hundred billion, one hundred twenty-two million, two hundred three thousand, one hundred eleven".