11111000002 has 4 divisors (see below), whose sum is σ = 16666500006. Its totient is φ = 5555500000.

The previous prime is 11110999981. The next prime is 11111000009. The reversal of 11111000002 is 20000011111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20000011111 = 2801 ⋅7140311.

It can be written as a sum of positive squares in only one way, i.e., 9139551201 + 1971448801 = 95601^2 + 44401^2 .

It is not an unprimeable number, because it can be changed into a prime (11111000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777749999 + ... + 2777750002.

Almost surely, 2^11111000002 is an apocalyptic number.

11111000002 is a deficient number, since it is larger than the sum of its proper divisors (5555500004).

11111000002 is an equidigital number, since it uses as much as digits as its factorization.

11111000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555500003.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 11111000002 its reverse (20000011111), we get a palindrome (31111011113).

The spelling of 11111000002 in words is "eleven billion, one hundred eleven million, two", and thus it is an aban number.