20011111109063 has 2 divisors, whose sum is σ = 20011111109064. Its totient is φ = 20011111109062.

The previous prime is 20011111109057. The next prime is 20011111109123. The reversal of 20011111109063 is 36090111111002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20011111109063 - 2⁶ = 20011111108999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011111108063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005555554531 + 10005555554532.

It is an arithmetic number, because the mean of its divisors is an integer number (10005555554532).

Almost surely, 2^{20011111109063} is an apocalyptic number.

20011111109063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011111109063 is an equidigital number, since it uses as much as digits as its factorization.

20011111109063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 20011111109063 in words is "twenty trillion, eleven billion, one hundred eleven million, one hundred nine thousand, sixty-three".