123303330020 has 96 divisors (see below), whose sum is σ = 299417803776. Its totient is φ = 42245683200.

The previous prime is 123303329957. The next prime is 123303330023. The reversal of 123303330020 is 20033303321.

It is a super-2 number, since 2×123303330020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123303329974 and 123303330001.

It is not an unprimeable number, because it can be changed into a prime (123303330023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117365 + ... + 510275.

It is an arithmetic number, because the mean of its divisors is an integer number (3118935456).

Almost surely, 2^123303330020 is an apocalyptic number.

123303330020 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 123303330020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149708901888).

123303330020 is an abundant number, since it is smaller than the sum of its proper divisors (176114473756).

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

123303330020 is a wasteful number, since it uses less digits than its factorization.

123303330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393021 (or 393019 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 123303330020 its reverse (20033303321), we get a palindrome (143336633341).

The spelling of 123303330020 in words is "one hundred twenty-three billion, three hundred three million, three hundred thirty thousand, twenty".