120845235840 has 256 divisors, whose sum is σ = 447441719040. Its totient is φ = 27168768000.

The previous prime is 120845235787. The next prime is 120845235853. The reversal of 120845235840 is 48532548021.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 120845235792 and 120845235801.

It is an unprimeable number.

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, 746140 + ... + 893540.

It is an arithmetic number, because the mean of its divisors is an integer number (1747819215).

Almost surely, 2^120845235840 is an apocalyptic number.

120845235840 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 120845235840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223720859520).

120845235840 is an abundant number, since it is smaller than the sum of its proper divisors (326596483200).

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

120845235840 is a wasteful number, since it uses less digits than its factorization.

120845235840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147491 (or 147479 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 120845235840 in words is "one hundred twenty billion, eight hundred forty-five million, two hundred thirty-five thousand, eight hundred forty".