21412110432340 has 24 divisors (see below), whose sum is σ = 45072747992160. Its totient is φ = 8544403014048.

The previous prime is 21412110432301. The next prime is 21412110432347. The reversal of 21412110432340 is 4323401121412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21412110432299 and 21412110432308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412110432347) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1277563842 + ... + 1277580601.

It is an arithmetic number, because the mean of its divisors is an integer number (1878031166340).

Almost surely, 2^{21412110432340} is an apocalyptic number.

21412110432340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21412110432340 is an abundant number, since it is smaller than the sum of its proper divisors (23660637559820).

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

21412110432340 is a wasteful number, since it uses less digits than its factorization.

21412110432340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555144871 (or 2555144869 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21412110432340 its reverse (4323401121412), we get a palindrome (25735511553752).

The spelling of 21412110432340 in words is "twenty-one trillion, four hundred twelve billion, one hundred ten million, four hundred thirty-two thousand, three hundred forty".