123755123 has 4 divisors (see below), whose sum is σ = 125145720. Its totient is φ = 122364528.

The previous prime is 123755119. The next prime is 123755129. The reversal of 123755123 is 321557321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123755123 - 2² = 123755119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123755129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695165 + ... + 695342.

It is an arithmetic number, because the mean of its divisors is an integer number (31286430).

Almost surely, 2^123755123 is an apocalyptic number.

123755123 is a deficient number, since it is larger than the sum of its proper divisors (1390597).

123755123 is an equidigital number, since it uses as much as digits as its factorization.

123755123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390596.

The product of its digits is 6300, while the sum is 29.

The square root of 123755123 is about 11124.5279899868. The cubic root of 123755123 is about 498.3346231987.

The spelling of 123755123 in words is "one hundred twenty-three million, seven hundred fifty-five thousand, one hundred twenty-three".