123350220 has 144 divisors (see below), whose sum is σ = 430510080. Its totient is φ = 28003968.

The previous prime is 123350203. The next prime is 123350221. The reversal of 123350220 is 22053321.

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 = 123350193 and 123350202.

It is not an unprimeable number, because it can be changed into a prime (123350221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280761 + ... + 281199.

Almost surely, 2^123350220 is an apocalyptic number.

123350220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123350220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215255040).

123350220 is an abundant number, since it is smaller than the sum of its proper divisors (307159860).

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

123350220 is a wasteful number, since it uses less digits than its factorization.

123350220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 679 counting only the distinct ones).

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

The square root of 123350220 is about 11106.3144201846. The cubic root of 123350220 is about 497.7905443258.

The spelling of 123350220 in words is "one hundred twenty-three million, three hundred fifty thousand, two hundred twenty".