20431334342341 has 32 divisors (see below), whose sum is σ = 23985194365440. Its totient is φ = 17241303812544.

The previous prime is 20431334342339. The next prime is 20431334342351. The reversal of 20431334342341 is 14324343313402.

It is a cyclic number.

It is not a de Polignac number, because 20431334342341 - 2¹ = 20431334342339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20431334342341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431334342351) 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 31 ways as a sum of consecutive naturals, for example, 10706851 + ... + 12469936.

It is an arithmetic number, because the mean of its divisors is an integer number (749537323920).

Almost surely, 2^{20431334342341} is an apocalyptic number.

It is an amenable number.

20431334342341 is a deficient number, since it is larger than the sum of its proper divisors (3553860023099).

20431334342341 is a wasteful number, since it uses less digits than its factorization.

20431334342341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23176945.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 20431334342341 its reverse (14324343313402), we get a palindrome (34755677655743).

The spelling of 20431334342341 in words is "twenty trillion, four hundred thirty-one billion, three hundred thirty-four million, three hundred forty-two thousand, three hundred forty-one".