1143013312 has 28 divisors (see below), whose sum is σ = 2592191920. Its totient is φ = 489862656.

The previous prime is 1143013283. The next prime is 1143013321. The reversal of 1143013312 is 2133103411.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1143013312.

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, 1275237 + ... + 1276132.

Almost surely, 2^1143013312 is an apocalyptic number.

It is an amenable number.

1143013312 is an abundant number, since it is smaller than the sum of its proper divisors (1449178608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143013312 is an equidigital number, since it uses as much as digits as its factorization.

1143013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551388 (or 2551378 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1143013312 is about 33808.4798830116. The cubic root of 1143013312 is about 1045.5635375334.

Adding to 1143013312 its reverse (2133103411), we get a palindrome (3276116723).

Subtracting 1143013312 from its reverse (2133103411), we obtain a palindrome (990090099).

It can be divided in two parts, 11430 and 13312, that added together give a palindrome (24742).

The spelling of 1143013312 in words is "one billion, one hundred forty-three million, thirteen thousand, three hundred twelve".