123345123 has 8 divisors (see below), whose sum is σ = 179411136. Its totient is φ = 74754600.

The previous prime is 123345119. The next prime is 123345127. The reversal of 123345123 is 321543321.

It is an interprime number because it is at equal distance from previous prime (123345119) and next prime (123345127).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123345123 - 2² = 123345119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123345093 and 123345102.

It is not an unprimeable number, because it can be changed into a prime (123345127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868833 + ... + 1868898.

It is an arithmetic number, because the mean of its divisors is an integer number (22426392).

Almost surely, 2^123345123 is an apocalyptic number.

123345123 is a deficient number, since it is larger than the sum of its proper divisors (56066013).

123345123 is a wasteful number, since it uses less digits than its factorization.

123345123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737745.

The product of its digits is 2160, while the sum is 24.

The square root of 123345123 is about 11106.0849537540. The cubic root of 123345123 is about 497.7836877690.

Adding to 123345123 its reverse (321543321), we get a palindrome (444888444).

The spelling of 123345123 in words is "one hundred twenty-three million, three hundred forty-five thousand, one hundred twenty-three".