20089547111 has 2 divisors, whose sum is σ = 20089547112. Its totient is φ = 20089547110.

The previous prime is 20089547089. The next prime is 20089547119. The reversal of 20089547111 is 11174598002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20089547111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20089547119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10044773555 + 10044773556.

It is an arithmetic number, because the mean of its divisors is an integer number (10044773556).

Almost surely, 2^20089547111 is an apocalyptic number.

20089547111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20089547111 is an equidigital number, since it uses as much as digits as its factorization.

20089547111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 20089547111 in words is "twenty billion, eighty-nine million, five hundred forty-seven thousand, one hundred eleven".