1101098128 has 80 divisors (see below), whose sum is σ = 2351405056. Its totient is φ = 496419840.

The previous prime is 1101098123. The next prime is 1101098137. The reversal of 1101098128 is 8218901011.

It is a self number, because there is not a number n which added to its sum of digits gives 1101098128.

It is not an unprimeable number, because it can be changed into a prime (1101098123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928083 + ... + 1928653.

Almost surely, 2^1101098128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101098128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175702528).

1101098128 is an abundant number, since it is smaller than the sum of its proper divisors (1250306928).

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

1101098128 is a wasteful number, since it uses less digits than its factorization.

1101098128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 31.

The square root of 1101098128 is about 33182.7986764227. The cubic root of 1101098128 is about 1032.6235089995.

Adding to 1101098128 its reverse (8218901011), we get a palindrome (9319999139).

The spelling of 1101098128 in words is "one billion, one hundred one million, ninety-eight thousand, one hundred twenty-eight".