11220011983 has 4 divisors (see below), whose sum is σ = 11238496960. Its totient is φ = 11201527008.

The previous prime is 11220011981. The next prime is 11220012047. The reversal of 11220011983 is 38911002211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38911002211 = 17 ⋅2288882483.

It is a cyclic number.

It is not a de Polignac number, because 11220011983 - 2¹ = 11220011981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220011981) 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, 9241578 + ... + 9242791.

It is an arithmetic number, because the mean of its divisors is an integer number (2809624240).

Almost surely, 2^11220011983 is an apocalyptic number.

11220011983 is a deficient number, since it is larger than the sum of its proper divisors (18484977).

11220011983 is an equidigital number, since it uses as much as digits as its factorization.

11220011983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18484976.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 11220011983 in words is "eleven billion, two hundred twenty million, eleven thousand, nine hundred eighty-three".