20368459211 has 4 divisors (see below), whose sum is σ = 21440483400. Its totient is φ = 19296435024.

The previous prime is 20368459159. The next prime is 20368459229. The reversal of 20368459211 is 11295486302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11295486302 = 2 ⋅5647743151.

It is a cyclic number.

It is not a de Polignac number, because 20368459211 - 2¹⁴ = 20368442827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20368059211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536012066 + ... + 536012103.

It is an arithmetic number, because the mean of its divisors is an integer number (5360120850).

Almost surely, 2^20368459211 is an apocalyptic number.

20368459211 is a deficient number, since it is larger than the sum of its proper divisors (1072024189).

20368459211 is a wasteful number, since it uses less digits than its factorization.

20368459211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072024188.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 20368459211 in words is "twenty billion, three hundred sixty-eight million, four hundred fifty-nine thousand, two hundred eleven".