123231104111 has 2 divisors, whose sum is σ = 123231104112. Its totient is φ = 123231104110.

The previous prime is 123231103987. The next prime is 123231104119. The reversal of 123231104111 is 111401132321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123231104111 - 2¹⁰ = 123231103087 is a prime.

It is a super-2 number, since 2×123231104111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231104119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615552055 + 61615552056.

It is an arithmetic number, because the mean of its divisors is an integer number (61615552056).

Almost surely, 2^123231104111 is an apocalyptic number.

123231104111 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231104111 is an equidigital number, since it uses as much as digits as its factorization.

123231104111 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 123231104111 its reverse (111401132321), we get a palindrome (234632236432).

The spelling of 123231104111 in words is "one hundred twenty-three billion, two hundred thirty-one million, one hundred four thousand, one hundred eleven".