11023131409 has 16 divisors (see below), whose sum is σ = 12112865280. Its totient is φ = 9984736080.

The previous prime is 11023131389. The next prime is 11023131439. The reversal of 11023131409 is 90413132011.

It is not a de Polignac number, because 11023131409 - 2⁵ = 11023131377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11023131439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583274 + ... + 1590220.

It is an arithmetic number, because the mean of its divisors is an integer number (757054080).

Almost surely, 2^11023131409 is an apocalyptic number.

11023131409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11023131409 is a deficient number, since it is larger than the sum of its proper divisors (1089733871).

11023131409 is a wasteful number, since it uses less digits than its factorization.

11023131409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10620.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 11023131409 in words is "eleven billion, twenty-three million, one hundred thirty-one thousand, four hundred nine".