11003121065406 has 16 divisors (see below), whose sum is σ = 22006390443264. Its totient is φ = 3667682303064.

The previous prime is 11003121065389. The next prime is 11003121065413. The reversal of 11003121065406 is 60456012130011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5203366 + ... + 7005801.

It is an arithmetic number, because the mean of its divisors is an integer number (1375399402704).

Almost surely, 2^{11003121065406} is an apocalyptic number.

11003121065406 is an abundant number, since it is smaller than the sum of its proper divisors (11003269377858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11003121065406 is a wasteful number, since it uses less digits than its factorization.

11003121065406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12359375.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 11003121065406 its reverse (60456012130011), we get a palindrome (71459133195417).

The spelling of 11003121065406 in words is "eleven trillion, three billion, one hundred twenty-one million, sixty-five thousand, four hundred six".