12320989011 has 24 divisors (see below), whose sum is σ = 18297175104. Its totient is φ = 7983601920.

The previous prime is 12320988991. The next prime is 12320989019. The reversal of 12320989011 is 11098902321.

It is not a de Polignac number, because 12320989011 - 2¹⁸ = 12320726867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12320989019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306406 + ... + 344276.

It is an arithmetic number, because the mean of its divisors is an integer number (762382296).

Almost surely, 2^12320989011 is an apocalyptic number.

12320989011 is a deficient number, since it is larger than the sum of its proper divisors (5976186093).

12320989011 is a wasteful number, since it uses less digits than its factorization.

12320989011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38891 (or 38888 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

It can be divided in two parts, 12 and 320989011, that added together give a palindrome (320989023).

The spelling of 12320989011 in words is "twelve billion, three hundred twenty million, nine hundred eighty-nine thousand, eleven".