1111111098 has 8 divisors (see below), whose sum is σ = 2222222208. Its totient is φ = 370370364.

The previous prime is 1111111097. The next prime is 1111111121. The reversal of 1111111098 is 8901111111.

It is a sphenic number, since it is the product of 3 distinct primes.

1111111098 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1111111097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92592586 + ... + 92592597.

It is an arithmetic number, because the mean of its divisors is an integer number (277777776).

Almost surely, 2^1111111098 is an apocalyptic number.

1111111098 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1111111098 is a wasteful number, since it uses less digits than its factorization.

1111111098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185185188.

The product of its (nonzero) digits is 72, while the sum is 24.

The square root of 1111111098 is about 33333.3331366667. Note that the first 3 decimals coincide. The cubic root of 1111111098 is about 1035.7441645774.

The spelling of 1111111098 in words is "one billion, one hundred eleven million, one hundred eleven thousand, ninety-eight".