20343212122541 has 12 divisors (see below), whose sum is σ = 25555109444256. Its totient is φ = 15851853601320.

The previous prime is 20343212122469. The next prime is 20343212122543. The reversal of 20343212122541 is 14522121234302.

It is not a de Polignac number, because 20343212122541 - 2²⁶ = 20343145013677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20343212122498 and 20343212122507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343212122543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12008979155 + ... + 12008980848.

It is an arithmetic number, because the mean of its divisors is an integer number (2129592453688).

Almost surely, 2^{20343212122541} is an apocalyptic number.

It is an amenable number.

20343212122541 is a deficient number, since it is larger than the sum of its proper divisors (5211897321715).

20343212122541 is a wasteful number, since it uses less digits than its factorization.

20343212122541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24017960032 (or 24017960021 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 20343212122541 its reverse (14522121234302), we get a palindrome (34865333356843).

The spelling of 20343212122541 in words is "twenty trillion, three hundred forty-three billion, two hundred twelve million, one hundred twenty-two thousand, five hundred forty-one".