1100201100989 has 2 divisors, whose sum is σ = 1100201100990. Its totient is φ = 1100201100988.

The previous prime is 1100201100983. The next prime is 1100201101019. The reversal of 1100201100989 is 9890011020011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561687293764 + 538513807225 = 749458^2 + 733835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100201100989 - 2²⁴ = 1100184323773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100201100983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550100550494 + 550100550495.

It is an arithmetic number, because the mean of its divisors is an integer number (550100550495).

Almost surely, 2^{1100201100989} is an apocalyptic number.

It is an amenable number.

1100201100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100201100989 is an equidigital number, since it uses as much as digits as its factorization.

1100201100989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 1100201100989 in words is "one trillion, one hundred billion, two hundred one million, one hundred thousand, nine hundred eighty-nine".