20011111111039 has 2 divisors, whose sum is σ = 20011111111040. Its totient is φ = 20011111111038.

The previous prime is 20011111111009. The next prime is 20011111111213. The reversal of 20011111111039 is 93011111111002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20011111111039 - 2¹¹ = 20011111108991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011111111009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005555555519 + 10005555555520.

It is an arithmetic number, because the mean of its divisors is an integer number (10005555555520).

Almost surely, 2^{20011111111039} is an apocalyptic number.

20011111111039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011111111039 is an equidigital number, since it uses as much as digits as its factorization.

20011111111039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 22.

The spelling of 20011111111039 in words is "twenty trillion, eleven billion, one hundred eleven million, one hundred eleven thousand, thirty-nine".