1120331521 has 4 divisors (see below), whose sum is σ = 1128391600. Its totient is φ = 1112271444.

The previous prime is 1120331483. The next prime is 1120331549. The reversal of 1120331521 is 1251330211.

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 1120331521 - 2¹⁷ = 1120200449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120331581) 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, 4029831 + ... + 4030108.

It is an arithmetic number, because the mean of its divisors is an integer number (282097900).

Almost surely, 2^1120331521 is an apocalyptic number.

It is an amenable number.

1120331521 is a deficient number, since it is larger than the sum of its proper divisors (8060079).

1120331521 is an equidigital number, since it uses as much as digits as its factorization.

1120331521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060078.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1120331521 is about 33471.3537371885. The cubic root of 1120331521 is about 1038.6012757879.

Adding to 1120331521 its reverse (1251330211), we get a palindrome (2371661732).

It can be divided in two parts, 11203 and 31521, that added together give a palindrome (42724).

The spelling of 1120331521 in words is "one billion, one hundred twenty million, three hundred thirty-one thousand, five hundred twenty-one".