11051321312104 has 8 divisors (see below), whose sum is σ = 20721227460210. Its totient is φ = 5525660656048.

The previous prime is 11051321312081. The next prime is 11051321312107. The reversal of 11051321312104 is 40121312315011.

It can be written as a sum of positive squares in only one way, i.e., 10319526609604 + 731794702500 = 3212402^2 + 855450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11051321312107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690707581999 + ... + 690707582014.

Almost surely, 2^{11051321312104} is an apocalyptic number.

It is an amenable number.

11051321312104 is a deficient number, since it is larger than the sum of its proper divisors (9669906148106).

11051321312104 is a wasteful number, since it uses less digits than its factorization.

11051321312104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381415164019 (or 1381415164015 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 11051321312104 its reverse (40121312315011), we get a palindrome (51172633627115).

The spelling of 11051321312104 in words is "eleven trillion, fifty-one billion, three hundred twenty-one million, three hundred twelve thousand, one hundred four".