120653202920 has 64 divisors (see below), whose sum is σ = 278061189120. Its totient is φ = 47091711744.

The previous prime is 120653202911. The next prime is 120653202947. The reversal of 120653202920 is 29202356021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707737 + ... + 1776983.

It is an arithmetic number, because the mean of its divisors is an integer number (4344706080).

Almost surely, 2^120653202920 is an apocalyptic number.

120653202920 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 120653202920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139030594560).

120653202920 is an abundant number, since it is smaller than the sum of its proper divisors (157407986200).

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

120653202920 is a wasteful number, since it uses less digits than its factorization.

120653202920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70314 (or 70310 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 120653202920 its reverse (29202356021), we get a palindrome (149855558941).

The spelling of 120653202920 in words is "one hundred twenty billion, six hundred fifty-three million, two hundred two thousand, nine hundred twenty".