1131011120209 has 8 divisors (see below), whose sum is σ = 1140385606632. Its totient is φ = 1121669241600.

The previous prime is 1131011120207. The next prime is 1131011120237. The reversal of 1131011120209 is 9020211101311.

It can be written as a sum of positive squares in 4 ways, for example, as 712214469184 + 418796651025 = 843928^2 + 647145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131011120209 - 2¹ = 1131011120207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131011120209.

It is not an unprimeable number, because it can be changed into a prime (1131011120201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8082294 + ... + 8221039.

It is an arithmetic number, because the mean of its divisors is an integer number (142548200829).

Almost surely, 2^{1131011120209} is an apocalyptic number.

It is an amenable number.

1131011120209 is a deficient number, since it is larger than the sum of its proper divisors (9374486423).

1131011120209 is a wasteful number, since it uses less digits than its factorization.

1131011120209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16303907.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 1131011120209 in words is "one trillion, one hundred thirty-one billion, eleven million, one hundred twenty thousand, two hundred nine".