1101111102 has 48 divisors (see below), whose sum is σ = 2936300640. Its totient is φ = 290402496.

The previous prime is 1101111091. The next prime is 1101111107. The reversal of 1101111102 is 2011111011.

1101111102 is digitally balanced in base 4, 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 not an unprimeable number, because it can be changed into a prime (1101111107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334477 + ... + 337752.

It is an arithmetic number, because the mean of its divisors is an integer number (61172930).

Almost surely, 2^1101111102 is an apocalyptic number.

1101111102 is an abundant number, since it is smaller than the sum of its proper divisors (1835189538).

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

1101111102 is a wasteful number, since it uses less digits than its factorization.

1101111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672257 (or 672254 counting only the distinct ones).

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

The square root of 1101111102 is about 33182.9941687003. The cubic root of 1101111102 is about 1032.6275647097.

Adding to 1101111102 its reverse (2011111011), we get a palindrome (3112222113).

Subtracting 1101111102 from its reverse (2011111011), we obtain a palindrome (909999909).

The spelling of 1101111102 in words is "one billion, one hundred one million, one hundred eleven thousand, one hundred two".