120551313312100 has 36 divisors (see below), whose sum is σ = 285377836243248. Its totient is φ = 43836841204000.

The previous prime is 120551313312061. The next prime is 120551313312109. The reversal of 120551313312100 is 1213313155021.

It is not an unprimeable number, because it can be changed into a prime (120551313312109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54796050406 + ... + 54796052605.

It is an arithmetic number, because the mean of its divisors is an integer number (7927162117868).

Almost surely, 2^{120551313312100} is an apocalyptic number.

120551313312100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120551313312100 is an abundant number, since it is smaller than the sum of its proper divisors (164826522931148).

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

120551313312100 is a wasteful number, since it uses less digits than its factorization.

120551313312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109592103036 (or 109592103029 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 120551313312100 its reverse (1213313155021), we get a palindrome (121764626467121).

The spelling of 120551313312100 in words is "one hundred twenty trillion, five hundred fifty-one billion, three hundred thirteen million, three hundred twelve thousand, one hundred".