123220300000 has 216 divisors, whose sum is σ = 352737064008. Its totient is φ = 42245280000.

The previous prime is 123220299973. The next prime is 123220300009. The reversal of 123220300000 is 3022321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220300009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4887427 + ... + 4912573.

It is an arithmetic number, because the mean of its divisors is an integer number (1633041963).

Almost surely, 2^123220300000 is an apocalyptic number.

123220300000 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 123220300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176368532004).

123220300000 is an abundant number, since it is smaller than the sum of its proper divisors (229516764008).

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

123220300000 is an frugal number, since it uses more digits than its factorization.

123220300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25196 (or 25161 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 123220300000 its reverse (3022321), we get a palindrome (123223322321).

The spelling of 123220300000 in words is "one hundred twenty-three billion, two hundred twenty million, three hundred thousand".