20352124310440 has 64 divisors (see below), whose sum is σ = 50245230042000. Its totient is φ = 7372845023232.

The previous prime is 20352124310423. The next prime is 20352124310443. The reversal of 20352124310440 is 4401342125302.

It can be written as a sum of positive squares in 8 ways, for example, as 7982399198596 + 12369725111844 = 2825314^2 + 3517062^2 .

It is not an unprimeable number, because it can be changed into a prime (20352124310443) 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, 369205465 + ... + 369260584.

Almost surely, 2^{20352124310440} is an apocalyptic number.

20352124310440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20352124310440 is an abundant number, since it is smaller than the sum of its proper divisors (29893105731560).

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

20352124310440 is a wasteful number, since it uses less digits than its factorization.

20352124310440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738466126 (or 738466122 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 20352124310440 its reverse (4401342125302), we get a palindrome (24753466435742).

The spelling of 20352124310440 in words is "twenty trillion, three hundred fifty-two billion, one hundred twenty-four million, three hundred ten thousand, four hundred forty".