1103521152 has 128 divisors (see below), whose sum is σ = 3044210400. Its totient is φ = 353894400.

The previous prime is 1103521151. The next prime is 1103521157. The reversal of 1103521152 is 2511253011.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1103521152² = 2435517865822814208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103521151) 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, 1434624 + ... + 1435392.

Almost surely, 2^1103521152 is an apocalyptic number.

1103521152 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 1103521152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522105200).

1103521152 is an abundant number, since it is smaller than the sum of its proper divisors (1940689248).

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

1103521152 is a wasteful number, since it uses less digits than its factorization.

1103521152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1103521152 is about 33219.2888545194. The cubic root of 1103521152 is about 1033.3804014171.

Adding to 1103521152 its reverse (2511253011), we get a palindrome (3614774163).

The spelling of 1103521152 in words is "one billion, one hundred three million, five hundred twenty-one thousand, one hundred fifty-two".