123123113300 has 72 divisors (see below), whose sum is σ = 291669561120. Its totient is φ = 44740771200.

The previous prime is 123123113299. The next prime is 123123113303. The reversal of 123123113300 is 3311321321.

It is a super-3 number, since 3×123123113300³ (a number of 34 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123123113303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1566542 + ... + 1643258.

Almost surely, 2^123123113300 is an apocalyptic number.

123123113300 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 123123113300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145834780560).

123123113300 is an abundant number, since it is smaller than the sum of its proper divisors (168546447820).

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

123123113300 is a wasteful number, since it uses less digits than its factorization.

123123113300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78201 (or 78194 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123123113300 its reverse (3311321321), we get a palindrome (126434434621).

The spelling of 123123113300 in words is "one hundred twenty-three billion, one hundred twenty-three million, one hundred thirteen thousand, three hundred".