11111002102 has 4 divisors (see below), whose sum is σ = 16666503156. Its totient is φ = 5555501050.

The previous prime is 11111002099. The next prime is 11111002181. The reversal of 11111002102 is 20120011111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2777750524 + ... + 2777750527.

It is an arithmetic number, because the mean of its divisors is an integer number (4166625789).

Almost surely, 2^11111002102 is an apocalyptic number.

11111002102 is a deficient number, since it is larger than the sum of its proper divisors (5555501054).

11111002102 is an equidigital number, since it uses as much as digits as its factorization.

11111002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555501053.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11111002102 its reverse (20120011111), we get a palindrome (31231013213).

Subtracting 11111002102 from its reverse (20120011111), we obtain a palindrome (9009009009).

The spelling of 11111002102 in words is "eleven billion, one hundred eleven million, two thousand, one hundred two".