11916723221083 has 4 divisors (see below), whose sum is σ = 11918367594720. Its totient is φ = 11915078847448.

The previous prime is 11916723221063. The next prime is 11916723221087. The reversal of 11916723221083 is 38012232761911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11916723221083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11916723221087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822175948 + ... + 822190441.

It is an arithmetic number, because the mean of its divisors is an integer number (2979591898680).

Almost surely, 2^{11916723221083} is an apocalyptic number.

11916723221083 is a deficient number, since it is larger than the sum of its proper divisors (1644373637).

11916723221083 is an equidigital number, since it uses as much as digits as its factorization.

11916723221083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644373636.

The product of its (nonzero) digits is 217728, while the sum is 46.

Adding to 11916723221083 its reverse (38012232761911), we get a palindrome (49928955982994).

The spelling of 11916723221083 in words is "eleven trillion, nine hundred sixteen billion, seven hundred twenty-three million, two hundred twenty-one thousand, eighty-three".