123530022 has 96 divisors (see below), whose sum is σ = 346155264. Its totient is φ = 32076000.

The previous prime is 123530003. The next prime is 123530047. The reversal of 123530022 is 220035321.

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

It is a junction number, because it is equal to n+sod(n) for n = 123529977 and 123530004.

It is a congruent number.

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, 35772 + ... + 39072.

It is an arithmetic number, because the mean of its divisors is an integer number (3605784).

Almost surely, 2^123530022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123530022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173077632).

123530022 is an abundant number, since it is smaller than the sum of its proper divisors (222625242).

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

123530022 is a wasteful number, since it uses less digits than its factorization.

123530022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 123530022 is about 11114.4060570055. The cubic root of 123530022 is about 498.0322957717.

Adding to 123530022 its reverse (220035321), we get a palindrome (343565343).

The spelling of 123530022 in words is "one hundred twenty-three million, five hundred thirty thousand, twenty-two".