120453312432 has 80 divisors (see below), whose sum is σ = 319426583168. Its totient is φ = 39091852800.

The previous prime is 120453312431. The next prime is 120453312461. The reversal of 120453312432 is 234213354021.

It is a self number, because there is not a number n which added to its sum of digits gives 120453312432.

It is not an unprimeable number, because it can be changed into a prime (120453312431) 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 15 ways as a sum of consecutive naturals, for example, 552807 + ... + 739257.

Almost surely, 2^120453312432 is an apocalyptic number.

120453312432 is a gapful number since it is divisible by the number (12) 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 120453312432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159713291584).

120453312432 is an abundant number, since it is smaller than the sum of its proper divisors (198973270736).

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

120453312432 is a wasteful number, since it uses less digits than its factorization.

120453312432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186818 (or 186812 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 120453312432 its reverse (234213354021), we get a palindrome (354666666453).

The spelling of 120453312432 in words is "one hundred twenty billion, four hundred fifty-three million, three hundred twelve thousand, four hundred thirty-two".