1120520143 has 4 divisors (see below), whose sum is σ = 1135869808. Its totient is φ = 1105170480.

The previous prime is 1120520077. The next prime is 1120520207. The reversal of 1120520143 is 3410250211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410250211 = 233 ⋅14636267.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120520143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120520143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120523143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7674723 + ... + 7674868.

It is an arithmetic number, because the mean of its divisors is an integer number (283967452).

Almost surely, 2^1120520143 is an apocalyptic number.

1120520143 is a deficient number, since it is larger than the sum of its proper divisors (15349665).

1120520143 is an equidigital number, since it uses as much as digits as its factorization.

1120520143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15349664.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1120520143 is about 33474.1712817509. The cubic root of 1120520143 is about 1038.6595597432.

Adding to 1120520143 its reverse (3410250211), we get a palindrome (4530770354).

The spelling of 1120520143 in words is "one billion, one hundred twenty million, five hundred twenty thousand, one hundred forty-three".