123031223300 has 72 divisors (see below), whose sum is σ = 271503872640. Its totient is φ = 48379075200.

The previous prime is 123031223299. The next prime is 123031223323. The reversal of 123031223300 is 3322130321.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13946291 + ... + 13955109.

It is an arithmetic number, because the mean of its divisors is an integer number (3770887120).

Almost surely, 2^123031223300 is an apocalyptic number.

123031223300 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 123031223300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135751936320).

123031223300 is an abundant number, since it is smaller than the sum of its proper divisors (148472649340).

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

123031223300 is a wasteful number, since it uses less digits than its factorization.

123031223300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181 (or 11174 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123031223300 its reverse (3322130321), we get a palindrome (126353353621).

The spelling of 123031223300 in words is "one hundred twenty-three billion, thirty-one million, two hundred twenty-three thousand, three hundred".