1101200002009 has 2 divisors, whose sum is σ = 1101200002010. Its totient is φ = 1101200002008.

The previous prime is 1101200001973. The next prime is 1101200002079. The reversal of 1101200002009 is 9002000021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 747311838784 + 353888163225 = 864472^2 + 594885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101200002009 - 2¹⁵ = 1101199969241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101200001983 and 1101200002001.

It is not a weakly prime, because it can be changed into another prime (1101200002079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550600001004 + 550600001005.

It is an arithmetic number, because the mean of its divisors is an integer number (550600001005).

Almost surely, 2^{1101200002009} is an apocalyptic number.

It is an amenable number.

1101200002009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101200002009 is an equidigital number, since it uses as much as digits as its factorization.

1101200002009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 1101200002009 in words is "one trillion, one hundred one billion, two hundred million, two thousand, nine".