11941009583 has 4 divisors (see below), whose sum is σ = 12075178320. Its totient is φ = 11806840848.

The previous prime is 11941009573. The next prime is 11941009601. The reversal of 11941009583 is 38590014911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38590014911 = 7 ⋅5512859273.

It is a cyclic number.

It is not a de Polignac number, because 11941009583 - 2¹⁶ = 11940944047 is a prime.

It is a super-2 number, since 2×11941009583² (a number of 21 digits) contains 22 as substring.

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 11941009583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11941009513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67084235 + ... + 67084412.

It is an arithmetic number, because the mean of its divisors is an integer number (3018794580).

Almost surely, 2^11941009583 is an apocalyptic number.

11941009583 is a deficient number, since it is larger than the sum of its proper divisors (134168737).

11941009583 is an equidigital number, since it uses as much as digits as its factorization.

11941009583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134168736.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 11941009583 in words is "eleven billion, nine hundred forty-one million, nine thousand, five hundred eighty-three".