11111111100002 has 8 divisors (see below), whose sum is σ = 16666685177196. Its totient is φ = 5555549374272.

The previous prime is 11111111099989. The next prime is 11111111100071. The reversal of 11111111100002 is 20000111111111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10212632709841 + 898478390161 = 3195721^2 + 947881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 355283 + ... + 4727414.

Almost surely, 2^{11111111100002} is an apocalyptic number.

11111111100002 is a deficient number, since it is larger than the sum of its proper divisors (5555574077194).

11111111100002 is a wasteful number, since it uses less digits than its factorization.

11111111100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175732.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11111111100002 its reverse (20000111111111), we get a palindrome (31111222211113).

The spelling of 11111111100002 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred thousand, two".