11183213809 has 8 divisors (see below), whose sum is σ = 11276680680. Its totient is φ = 11090113536.

The previous prime is 11183213807. The next prime is 11183213831. The reversal of 11183213809 is 90831238111.

It can be written as a sum of positive squares in 4 ways, for example, as 78269409 + 11104944400 = 8847^2 + 105380^2 .

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 11183213809 - 2¹ = 11183213807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11183213803) 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, 30214 + ... + 152575.

It is an arithmetic number, because the mean of its divisors is an integer number (1409585085).

Almost surely, 2^11183213809 is an apocalyptic number.

It is an amenable number.

11183213809 is a deficient number, since it is larger than the sum of its proper divisors (93466871).

11183213809 is a wasteful number, since it uses less digits than its factorization.

11183213809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183299.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 11183213809 in words is "eleven billion, one hundred eighty-three million, two hundred thirteen thousand, eight hundred nine".