120321310120 has 128 divisors (see below), whose sum is σ = 297160151040. Its totient is φ = 43483587840.

The previous prime is 120321310117. The next prime is 120321310121. The reversal of 120321310120 is 21013123021.

It is a junction number, because it is equal to n+sod(n) for n = 120321310094 and 120321310103.

It is not an unprimeable number, because it can be changed into a prime (120321310121) 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 31 ways as a sum of consecutive naturals, for example, 57651717 + ... + 57653803.

It is an arithmetic number, because the mean of its divisors is an integer number (2321563680).

Almost surely, 2^120321310120 is an apocalyptic number.

120321310120 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 120321310120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148580075520).

120321310120 is an abundant number, since it is smaller than the sum of its proper divisors (176838840920).

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

120321310120 is a wasteful number, since it uses less digits than its factorization.

120321310120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120321310120 its reverse (21013123021), we get a palindrome (141334433141).

The spelling of 120321310120 in words is "one hundred twenty billion, three hundred twenty-one million, three hundred ten thousand, one hundred twenty".