122743123 has 2 divisors, whose sum is σ = 122743124. Its totient is φ = 122743122.

The previous prime is 122743091. The next prime is 122743133. The reversal of 122743123 is 321347221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122743123 - 2⁵ = 122743091 is a prime.

It is not a weakly prime, because it can be changed into another prime (122743133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61371561 + 61371562.

It is an arithmetic number, because the mean of its divisors is an integer number (61371562).

Almost surely, 2^122743123 is an apocalyptic number.

122743123 is a deficient number, since it is larger than the sum of its proper divisors (1).

122743123 is an equidigital number, since it uses as much as digits as its factorization.

122743123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 122743123 is about 11078.9495440678. The cubic root of 122743123 is about 496.9725365951.

The spelling of 122743123 in words is "one hundred twenty-two million, seven hundred forty-three thousand, one hundred twenty-three".