1143311402 has 8 divisors (see below), whose sum is σ = 1716163200. Its totient is φ = 571257004.

The previous prime is 1143311369. The next prime is 1143311413. The reversal of 1143311402 is 2041133411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 195752 + ... + 201507.

It is an arithmetic number, because the mean of its divisors is an integer number (214520400).

Almost surely, 2^1143311402 is an apocalyptic number.

1143311402 is a deficient number, since it is larger than the sum of its proper divisors (572851798).

1143311402 is a wasteful number, since it uses less digits than its factorization.

1143311402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398700.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1143311402 is about 33812.8881049815. Note that the first 3 decimals coincide. The cubic root of 1143311402 is about 1045.6544215566.

Adding to 1143311402 its reverse (2041133411), we get a palindrome (3184444813).

The spelling of 1143311402 in words is "one billion, one hundred forty-three million, three hundred eleven thousand, four hundred two".