12320111230100 has 144 divisors (see below), whose sum is σ = 28355794331760. Its totient is φ = 4630216704000.

The previous prime is 12320111230033. The next prime is 12320111230111. The reversal of 12320111230100 is 103211102321.

It can be written as a sum of positive squares in 24 ways, for example, as 3863717021956 + 8456394208144 = 1965634^2 + 2907988^2 .

It is a super-2 number, since 2×12320111230100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3328858250 + ... + 3328861950.

It is an arithmetic number, because the mean of its divisors is an integer number (196915238415).

Almost surely, 2^{12320111230100} is an apocalyptic number.

12320111230100 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 12320111230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14177897165880).

12320111230100 is an abundant number, since it is smaller than the sum of its proper divisors (16035683101660).

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

12320111230100 is a wasteful number, since it uses less digits than its factorization.

12320111230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6558 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12320111230100 its reverse (103211102321), we get a palindrome (12423322332421).

The spelling of 12320111230100 in words is "twelve trillion, three hundred twenty billion, one hundred eleven million, two hundred thirty thousand, one hundred".