1143401312 has 24 divisors (see below), whose sum is σ = 2255526000. Its totient is φ = 570569344.

The previous prime is 1143401293. The next prime is 1143401353. The reversal of 1143401312 is 2131043411.

It is a congruent number.

It is an unprimeable number.

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, 18812 + ... + 51387.

It is an arithmetic number, because the mean of its divisors is an integer number (93980250).

Almost surely, 2^1143401312 is an apocalyptic number.

It is an amenable number.

1143401312 is a deficient number, since it is larger than the sum of its proper divisors (1112124688).

1143401312 is an equidigital number, since it uses as much as digits as its factorization.

1143401312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70718 (or 70710 counting only the distinct ones).

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

The square root of 1143401312 is about 33814.2176014765. The cubic root of 1143401312 is about 1045.6818309233.

Adding to 1143401312 its reverse (2131043411), we get a palindrome (3274444723).

The spelling of 1143401312 in words is "one billion, one hundred forty-three million, four hundred one thousand, three hundred twelve".