20959079100111 has 16 divisors (see below), whose sum is σ = 31051103915520. Its totient is φ = 13972442038200.

The previous prime is 20959079100097. The next prime is 20959079100119. The reversal of 20959079100111 is 11100197095902.

It is not a de Polignac number, because 20959079100111 - 2⁹ = 20959079099599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20959079100119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6314565 + ... + 9043886.

It is an arithmetic number, because the mean of its divisors is an integer number (1940693994720).

Almost surely, 2^{20959079100111} is an apocalyptic number.

20959079100111 is a deficient number, since it is larger than the sum of its proper divisors (10092024815409).

20959079100111 is a wasteful number, since it uses less digits than its factorization.

20959079100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15409003 (or 15408997 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 45.

The spelling of 20959079100111 in words is "twenty trillion, nine hundred fifty-nine billion, seventy-nine million, one hundred thousand, one hundred eleven".