1120115521 has 4 divisors (see below), whose sum is σ = 1280132032. Its totient is φ = 960099012.

The previous prime is 1120115509. The next prime is 1120115527. The reversal of 1120115521 is 1255110211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1120115521 - 2¹¹ = 1120113473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120115527) 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 3 ways as a sum of consecutive naturals, for example, 80008245 + ... + 80008258.

It is an arithmetic number, because the mean of its divisors is an integer number (320033008).

Almost surely, 2^1120115521 is an apocalyptic number.

It is an amenable number.

1120115521 is a deficient number, since it is larger than the sum of its proper divisors (160016511).

1120115521 is an equidigital number, since it uses as much as digits as its factorization.

1120115521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160016510.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 1120115521 is about 33468.1269419130. The cubic root of 1120115521 is about 1038.5345240303.

Adding to 1120115521 its reverse (1255110211), we get a palindrome (2375225732).

The spelling of 1120115521 in words is "one billion, one hundred twenty million, one hundred fifteen thousand, five hundred twenty-one".