123320106 has 96 divisors (see below), whose sum is σ = 333365760. Its totient is φ = 32078592.

The previous prime is 123320069. The next prime is 123320117. The reversal of 123320106 is 601023321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128926 + ... + 129878.

It is an arithmetic number, because the mean of its divisors is an integer number (3472560).

Almost surely, 2^123320106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123320106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166682880).

123320106 is an abundant number, since it is smaller than the sum of its proper divisors (210045654).

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

123320106 is a wasteful number, since it uses less digits than its factorization.

123320106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 123320106 is about 11104.9586221651. The cubic root of 123320106 is about 497.7500318064.

Adding to 123320106 its reverse (601023321), we get a palindrome (724343427).

The spelling of 123320106 in words is "one hundred twenty-three million, three hundred twenty thousand, one hundred six".