1121029336 has 128 divisors (see below), whose sum is σ = 2674944000. Its totient is φ = 429553152.

The previous prime is 1121029333. The next prime is 1121029369. The reversal of 1121029336 is 6339201211.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121029333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1449846 + ... + 1450618.

It is an arithmetic number, because the mean of its divisors is an integer number (20898000).

Almost surely, 2^1121029336 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 1121029336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337472000).

1121029336 is an abundant number, since it is smaller than the sum of its proper divisors (1553914664).

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

1121029336 is a wasteful number, since it uses less digits than its factorization.

1121029336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1121029336 is about 33481.7761774969. The cubic root of 1121029336 is about 1038.8168670701.

The spelling of 1121029336 in words is "one billion, one hundred twenty-one million, twenty-nine thousand, three hundred thirty-six".