20200111110989 has 2 divisors, whose sum is σ = 20200111110990. Its totient is φ = 20200111110988.

The previous prime is 20200111110931. The next prime is 20200111111001. The reversal of 20200111110989 is 98901111100202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17324824536100 + 2875286574889 = 4162310^2 + 1695667^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200111110989 - 2⁴⁰ = 19100599483213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200111112989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100055555494 + 10100055555495.

It is an arithmetic number, because the mean of its divisors is an integer number (10100055555495).

Almost surely, 2^{20200111110989} is an apocalyptic number.

It is an amenable number.

20200111110989 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200111110989 is an equidigital number, since it uses as much as digits as its factorization.

20200111110989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 20200111110989 in words is "twenty trillion, two hundred billion, one hundred eleven million, one hundred ten thousand, nine hundred eighty-nine".