1143120113 has 4 divisors (see below), whose sum is σ = 1143206820. Its totient is φ = 1143033408.

The previous prime is 1143120109. The next prime is 1143120131. The reversal of 1143120113 is 3110213411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 441294049 + 701826064 = 21007^2 + 26492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143120113 - 2² = 1143120109 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 1143120091 and 1143120100.

It is not an unprimeable number, because it can be changed into a prime (1143120193) 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 3 ways as a sum of consecutive naturals, for example, 19028 + ... + 51461.

It is an arithmetic number, because the mean of its divisors is an integer number (285801705).

Almost surely, 2^1143120113 is an apocalyptic number.

It is an amenable number.

1143120113 is a deficient number, since it is larger than the sum of its proper divisors (86707).

1143120113 is an equidigital number, since it uses as much as digits as its factorization.

1143120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86706.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1143120113 is about 33810.0593462951. The cubic root of 1143120113 is about 1045.5961016784.

Adding to 1143120113 its reverse (3110213411), we get a palindrome (4253333524).

The spelling of 1143120113 in words is "one billion, one hundred forty-three million, one hundred twenty thousand, one hundred thirteen".