11839971227 has 4 divisors (see below), whose sum is σ = 13531395696. Its totient is φ = 10148546760.

The previous prime is 11839971173. The next prime is 11839971287. The reversal of 11839971227 is 72217993811.

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

It is a cyclic number.

It is not a de Polignac number, because 11839971227 - 2¹⁴ = 11839954843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11839971287) 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, 845712224 + ... + 845712237.

It is an arithmetic number, because the mean of its divisors is an integer number (3382848924).

Almost surely, 2^11839971227 is an apocalyptic number.

11839971227 is a deficient number, since it is larger than the sum of its proper divisors (1691424469).

11839971227 is an equidigital number, since it uses as much as digits as its factorization.

11839971227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691424468.

The product of its digits is 381024, while the sum is 50.

The spelling of 11839971227 in words is "eleven billion, eight hundred thirty-nine million, nine hundred seventy-one thousand, two hundred twenty-seven".