11423320012 has 48 divisors (see below), whose sum is σ = 21727046880. Its totient is φ = 5223923712.

The previous prime is 11423319997. The next prime is 11423320033. The reversal of 11423320012 is 21002332411.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2630539 + ... + 2634877.

It is an arithmetic number, because the mean of its divisors is an integer number (452646810).

Almost surely, 2^11423320012 is an apocalyptic number.

It is an amenable number.

11423320012 is a deficient number, since it is larger than the sum of its proper divisors (10303726868).

11423320012 is a wasteful number, since it uses less digits than its factorization.

11423320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810 (or 4808 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11423320012 its reverse (21002332411), we get a palindrome (32425652423).

The spelling of 11423320012 in words is "eleven billion, four hundred twenty-three million, three hundred twenty thousand, twelve".