1011111102 has 12 divisors (see below), whose sum is σ = 2190740760. Its totient is φ = 337037028.

The previous prime is 1011111083. The next prime is 1011111133. The reversal of 1011111102 is 2011111101.

1011111102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28086402 + ... + 28086437.

It is an arithmetic number, because the mean of its divisors is an integer number (182561730).

Almost surely, 2^1011111102 is an apocalyptic number.

1011111102 is an abundant number, since it is smaller than the sum of its proper divisors (1179629658).

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

1011111102 is a wasteful number, since it uses less digits than its factorization.

1011111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56172847 (or 56172844 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1011111102 is about 31797.9732372993. The cubic root of 1011111102 is about 1003.6900673211.

Adding to 1011111102 its reverse (2011111101), we get a palindrome (3022222203).

Subtracting 1011111102 from its reverse (2011111101), we obtain a palindrome (999999999).

The spelling of 1011111102 in words is "one billion, eleven million, one hundred eleven thousand, one hundred two".