120131121120320 has 112 divisors (see below), whose sum is σ = 301176360206400. Its totient is φ = 45514570291200.

The previous prime is 120131121120299. The next prime is 120131121120473. The reversal of 120131121120320 is 23021121131021.

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

It is a junction number, because it is equal to n+sod(n) for n = 120131121120292 and 120131121120301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29580770 + ... + 33395870.

It is an arithmetic number, because the mean of its divisors is an integer number (2689074644700).

Almost surely, 2^{120131121120320} is an apocalyptic number.

120131121120320 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 120131121120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150588180103200).

120131121120320 is an abundant number, since it is smaller than the sum of its proper divisors (181045239086080).

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

120131121120320 is a wasteful number, since it uses less digits than its factorization.

120131121120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820316 (or 3820306 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 120131121120320 its reverse (23021121131021), we get a palindrome (143152242251341).

The spelling of 120131121120320 in words is "one hundred twenty trillion, one hundred thirty-one billion, one hundred twenty-one million, one hundred twenty thousand, three hundred twenty".