11827408321 has 4 divisors (see below), whose sum is σ = 11942237632. Its totient is φ = 11712579012.

The previous prime is 11827408319. The next prime is 11827408337. The reversal of 11827408321 is 12380472811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11827408321 - 2¹ = 11827408319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11827408721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57414501 + ... + 57414706.

It is an arithmetic number, because the mean of its divisors is an integer number (2985559408).

Almost surely, 2^11827408321 is an apocalyptic number.

It is an amenable number.

11827408321 is a deficient number, since it is larger than the sum of its proper divisors (114829311).

11827408321 is a wasteful number, since it uses less digits than its factorization.

11827408321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114829310.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 11827408321 in words is "eleven billion, eight hundred twenty-seven million, four hundred eight thousand, three hundred twenty-one".