1330221143 has 4 divisors (see below), whose sum is σ = 1330475088. Its totient is φ = 1329967200.

The previous prime is 1330221127. The next prime is 1330221157. The reversal of 1330221143 is 3411220331.

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

It is a cyclic number.

It is not a de Polignac number, because 1330221143 - 2⁴ = 1330221127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330221173) 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, 118946 + ... + 129647.

It is an arithmetic number, because the mean of its divisors is an integer number (332618772).

Almost surely, 2^1330221143 is an apocalyptic number.

1330221143 is a deficient number, since it is larger than the sum of its proper divisors (253945).

1330221143 is an equidigital number, since it uses as much as digits as its factorization.

1330221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253944.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1330221143 is about 36472.1968491069. The cubic root of 1330221143 is about 1099.7853969780.

Adding to 1330221143 its reverse (3411220331), we get a palindrome (4741441474).

The spelling of 1330221143 in words is "one billion, three hundred thirty million, two hundred twenty-one thousand, one hundred forty-three".