1143430201 has 4 divisors (see below), whose sum is σ = 1143500004. Its totient is φ = 1143360400.

The previous prime is 1143430159. The next prime is 1143430219. The reversal of 1143430201 is 1020343411.

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 47886400 + 1095543801 = 6920^2 + 33099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143430201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143230201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4491 + ... + 48031.

It is an arithmetic number, because the mean of its divisors is an integer number (285875001).

Almost surely, 2^1143430201 is an apocalyptic number.

It is an amenable number.

1143430201 is a deficient number, since it is larger than the sum of its proper divisors (69803).

1143430201 is an equidigital number, since it uses as much as digits as its factorization.

1143430201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69802.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143430201 is about 33814.6447711639. The cubic root of 1143430201 is about 1045.6906375274.

Adding to 1143430201 its reverse (1020343411), we get a palindrome (2163773612).

The spelling of 1143430201 in words is "one billion, one hundred forty-three million, four hundred thirty thousand, two hundred one".