123122111423 has 2 divisors, whose sum is σ = 123122111424. Its totient is φ = 123122111422.

The previous prime is 123122111327. The next prime is 123122111443. The reversal of 123122111423 is 324111221321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123122111423 - 2¹² = 123122107327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123122111443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561055711 + 61561055712.

It is an arithmetic number, because the mean of its divisors is an integer number (61561055712).

Almost surely, 2^123122111423 is an apocalyptic number.

123122111423 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122111423 is an equidigital number, since it uses as much as digits as its factorization.

123122111423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

Adding to 123122111423 its reverse (324111221321), we get a palindrome (447233332744).

The spelling of 123122111423 in words is "one hundred twenty-three billion, one hundred twenty-two million, one hundred eleven thousand, four hundred twenty-three".