11331131230209 has 16 divisors (see below), whose sum is σ = 17356886138880. Its totient is φ = 6441031961040.

The previous prime is 11331131230207. The next prime is 11331131230273. The reversal of 11331131230209 is 90203213113311.

It is a happy number.

It is not a de Polignac number, because 11331131230209 - 2¹ = 11331131230207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331131230207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1412502999 + ... + 1412511020.

It is an arithmetic number, because the mean of its divisors is an integer number (1084805383680).

Almost surely, 2^{11331131230209} is an apocalyptic number.

It is an amenable number.

11331131230209 is a deficient number, since it is larger than the sum of its proper divisors (6025754908671).

11331131230209 is a wasteful number, since it uses less digits than its factorization.

11331131230209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825014220.

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 11331131230209 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, two hundred thirty thousand, two hundred nine".