1143023353 has 4 divisors (see below), whose sum is σ = 1148825700. Its totient is φ = 1137221008.

The previous prime is 1143023347. The next prime is 1143023359. The reversal of 1143023353 is 3533203411.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1143023347) and next prime (1143023359).

It can be written as a sum of positive squares in 2 ways, for example, as 1011049209 + 131974144 = 31797^2 + 11488^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143023353 - 2¹⁷ = 1142892281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143023359) 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, 2900878 + ... + 2901271.

It is an arithmetic number, because the mean of its divisors is an integer number (287206425).

Almost surely, 2^1143023353 is an apocalyptic number.

It is an amenable number.

1143023353 is a deficient number, since it is larger than the sum of its proper divisors (5802347).

1143023353 is an equidigital number, since it uses as much as digits as its factorization.

1143023353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802346.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1143023353 is about 33808.6283809326. The cubic root of 1143023353 is about 1045.5665991696.

Adding to 1143023353 its reverse (3533203411), we get a palindrome (4676226764).

The spelling of 1143023353 in words is "one billion, one hundred forty-three million, twenty-three thousand, three hundred fifty-three".