1101331332 has 72 divisors (see below), whose sum is σ = 2996105112. Its totient is φ = 339840000.

The previous prime is 1101331277. The next prime is 1101331373. The reversal of 1101331332 is 2331331011.

It is a happy number.

1101331332 is a `hidden beast` number, since 1 + 1 + 0 + 1 + 331 + 332 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 37527876 + 1063803456 = 6126^2 + 32616^2 .

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

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, 22582 + ... + 52082.

It is an arithmetic number, because the mean of its divisors is an integer number (41612571).

Almost surely, 2^1101331332 is an apocalyptic number.

1101331332 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 1101331332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498052556).

1101331332 is an abundant number, since it is smaller than the sum of its proper divisors (1894773780).

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

1101331332 is a wasteful number, since it uses less digits than its factorization.

1101331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29589 (or 29584 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1101331332 is about 33186.3124194298. The cubic root of 1101331332 is about 1032.6964043900.

Adding to 1101331332 its reverse (2331331011), we get a palindrome (3432662343).

The spelling of 1101331332 in words is "one billion, one hundred one million, three hundred thirty-one thousand, three hundred thirty-two".