100321231120100 has 18 divisors (see below), whose sum is σ = 217697071530834. Its totient is φ = 40128492448000.

The previous prime is 100321231120069. The next prime is 100321231120151. The reversal of 100321231120100 is 1021132123001.

It can be written as a sum of positive squares in 3 ways, for example, as 17839270006336 + 82481961113764 = 4223656^2 + 9081958^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 501606155501 + ... + 501606155700.

It is an arithmetic number, because the mean of its divisors is an integer number (12094281751713).

Almost surely, 2^{100321231120100} is an apocalyptic number.

100321231120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100321231120100 is an abundant number, since it is smaller than the sum of its proper divisors (117375840410734).

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

100321231120100 is a wasteful number, since it uses less digits than its factorization.

100321231120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003212311215 (or 1003212311208 counting only the distinct ones).

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

Adding to 100321231120100 its reverse (1021132123001), we get a palindrome (101342363243101).

The spelling of 100321231120100 in words is "one hundred trillion, three hundred twenty-one billion, two hundred thirty-one million, one hundred twenty thousand, one hundred".