20351643314211 has 72 divisors (see below), whose sum is σ = 33529703679472. Its totient is φ = 12326691326400.

The previous prime is 20351643314203. The next prime is 20351643314213. The reversal of 20351643314211 is 11241334615302.

20351643314211 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 1 + 6 + 433 + 1 + 4 + 211 = 666.

It is not a de Polignac number, because 20351643314211 - 2³ = 20351643314203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20351643314213) 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 71 ways as a sum of consecutive naturals, for example, 47448765 + ... + 47875761.

Almost surely, 2^{20351643314211} is an apocalyptic number.

20351643314211 is a deficient number, since it is larger than the sum of its proper divisors (13178060365261).

20351643314211 is a wasteful number, since it uses less digits than its factorization.

20351643314211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428655 (or 428632 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 20351643314211 its reverse (11241334615302), we get a palindrome (31592977929513).

The spelling of 20351643314211 in words is "twenty trillion, three hundred fifty-one billion, six hundred forty-three million, three hundred fourteen thousand, two hundred eleven".