123131032300 has 144 divisors (see below), whose sum is σ = 285779708928. Its totient is φ = 45887616000.

The previous prime is 123131032253. The next prime is 123131032303. The reversal of 123131032300 is 3230131321.

It is a super-2 number, since 2×123131032300² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123131032303) 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, 94208247 + ... + 94209553.

It is an arithmetic number, because the mean of its divisors is an integer number (1984581312).

Almost surely, 2^123131032300 is an apocalyptic number.

123131032300 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 123131032300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142889854464).

123131032300 is an abundant number, since it is smaller than the sum of its proper divisors (162648676628).

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

123131032300 is a wasteful number, since it uses less digits than its factorization.

123131032300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123131032300 its reverse (3230131321), we get a palindrome (126361163621).

The spelling of 123131032300 in words is "one hundred twenty-three billion, one hundred thirty-one million, thirty-two thousand, three hundred".