1121011092 has 72 divisors (see below), whose sum is σ = 2903191200. Its totient is φ = 364598208.

The previous prime is 1121011081. The next prime is 1121011123. The reversal of 1121011092 is 2901101211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293338 + ... + 297134.

It is an arithmetic number, because the mean of its divisors is an integer number (40322100).

Almost surely, 2^1121011092 is an apocalyptic number.

1121011092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121011092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451595600).

1121011092 is an abundant number, since it is smaller than the sum of its proper divisors (1782180108).

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

1121011092 is a wasteful number, since it uses less digits than its factorization.

1121011092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005 (or 4000 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 1121011092 is about 33481.5037296714. The cubic root of 1121011092 is about 1038.8112316905.

The spelling of 1121011092 in words is "one billion, one hundred twenty-one million, eleven thousand, ninety-two".