11111111109930 has 128 divisors (see below), whose sum is σ = 29646352834560. Its totient is φ = 2646635316480.

The previous prime is 11111111109929. The next prime is 11111111109949. The reversal of 11111111109930 is 3990111111111.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 in 63 ways as a sum of consecutive naturals, for example, 284566989 + ... + 284606031.

It is an arithmetic number, because the mean of its divisors is an integer number (231612131520).

Almost surely, 2^{11111111109930} is an apocalyptic number.

11111111109930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11111111109930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14823176417280).

11111111109930 is an abundant number, since it is smaller than the sum of its proper divisors (18535241724630).

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

11111111109930 is a wasteful number, since it uses less digits than its factorization.

11111111109930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62636.

The product of its (nonzero) digits is 243, while the sum is 30.

The spelling of 11111111109930 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred nine thousand, nine hundred thirty".