11330420643 has 16 divisors (see below), whose sum is σ = 17195220000. Its totient is φ = 7369378560.

The previous prime is 11330420599. The next prime is 11330420657. The reversal of 11330420643 is 34602403311.

11330420643 is a `hidden beast` number, since 1 + 13 + 3 + 0 + 4 + 2 + 0 + 643 = 666.

It is not a de Polignac number, because 11330420643 - 2¹⁰ = 11330419619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11330420663) 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 15 ways as a sum of consecutive naturals, for example, 5116518 + ... + 5118731.

It is an arithmetic number, because the mean of its divisors is an integer number (1074701250).

Almost surely, 2^11330420643 is an apocalyptic number.

11330420643 is a deficient number, since it is larger than the sum of its proper divisors (5864799357).

11330420643 is a wasteful number, since it uses less digits than its factorization.

11330420643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235299 (or 10235293 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 11330420643 its reverse (34602403311), we get a palindrome (45932823954).

The spelling of 11330420643 in words is "eleven billion, three hundred thirty million, four hundred twenty thousand, six hundred forty-three".