20113110109999 has 2 divisors, whose sum is σ = 20113110110000. Its totient is φ = 20113110109998.

The previous prime is 20113110109997. The next prime is 20113110110029. The reversal of 20113110109999 is 99990101131102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20113110109999 - 2¹ = 20113110109997 is a prime.

Together with 20113110109997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113110109997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056555054999 + 10056555055000.

It is an arithmetic number, because the mean of its divisors is an integer number (10056555055000).

Almost surely, 2^{20113110109999} is an apocalyptic number.

20113110109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113110109999 is an equidigital number, since it uses as much as digits as its factorization.

20113110109999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39366, while the sum is 46.

The spelling of 20113110109999 in words is "twenty trillion, one hundred thirteen billion, one hundred ten million, one hundred nine thousand, nine hundred ninety-nine".