12352440562420 has 48 divisors (see below), whose sum is σ = 29761210967040. Its totient is φ = 4218643390464.

The previous prime is 12352440562391. The next prime is 12352440562457. The reversal of 12352440562420 is 2426504425321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171621060 + ... + 171693019.

It is an arithmetic number, because the mean of its divisors is an integer number (620025228480).

Almost surely, 2^{12352440562420} is an apocalyptic number.

12352440562420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12352440562420 is an abundant number, since it is smaller than the sum of its proper divisors (17408770404620).

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

12352440562420 is a wasteful number, since it uses less digits than its factorization.

12352440562420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343314352 (or 343314350 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 12352440562420 its reverse (2426504425321), we get a palindrome (14778944987741).

The spelling of 12352440562420 in words is "twelve trillion, three hundred fifty-two billion, four hundred forty million, five hundred sixty-two thousand, four hundred twenty".