123023104 has 72 divisors (see below), whose sum is σ = 258647760. Its totient is φ = 58318848.

The previous prime is 123023093. The next prime is 123023107. The reversal of 123023104 is 401320321.

123023104 = 1262² + 1263² + ... + 1334².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123023107) 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, 541839 + ... + 542065.

It is an arithmetic number, because the mean of its divisors is an integer number (3592330).

Almost surely, 2^123023104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123023104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129323880).

123023104 is an abundant number, since it is smaller than the sum of its proper divisors (135624656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123023104 is an equidigital number, since it uses as much as digits as its factorization.

123023104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123023104 is about 11091.5780662627. The cubic root of 123023104 is about 497.3501197454.

Adding to 123023104 its reverse (401320321), we get a palindrome (524343425).

The spelling of 123023104 in words is "one hundred twenty-three million, twenty-three thousand, one hundred four".