20110643343 has 24 divisors (see below), whose sum is σ = 33213504896. Its totient is φ = 11486610000.

The previous prime is 20110643327. The next prime is 20110643351. The reversal of 20110643343 is 34334601102.

20110643343 is a `hidden beast` number, since 2 + 0 + 1 + 10 + 643 + 3 + 4 + 3 = 666.

It is a Cunningham number, because it is equal to 141812²-1.

It is not a de Polignac number, because 20110643343 - 2⁴ = 20110643327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110643303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70908 + ... + 212718.

Almost surely, 2^20110643343 is an apocalyptic number.

20110643343 is a deficient number, since it is larger than the sum of its proper divisors (13102861553).

20110643343 is a wasteful number, since it uses less digits than its factorization.

20110643343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144075 (or 144072 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The spelling of 20110643343 in words is "twenty billion, one hundred ten million, six hundred forty-three thousand, three hundred forty-three".