1120521543 has 8 divisors (see below), whose sum is σ = 1512940800. Its totient is φ = 737558328.

The previous prime is 1120521541. The next prime is 1120521551. The reversal of 1120521543 is 3451250211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1120521543 - 2¹ = 1120521541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120521541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2363733 + ... + 2364206.

It is an arithmetic number, because the mean of its divisors is an integer number (189117600).

Almost surely, 2^1120521543 is an apocalyptic number.

1120521543 is a deficient number, since it is larger than the sum of its proper divisors (392419257).

1120521543 is an equidigital number, since it uses as much as digits as its factorization.

1120521543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728021.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1120521543 is about 33474.1921933898. The cubic root of 1120521543 is about 1038.6599923169.

Adding to 1120521543 its reverse (3451250211), we get a palindrome (4571771754).

The spelling of 1120521543 in words is "one billion, one hundred twenty million, five hundred twenty-one thousand, five hundred forty-three".