1143987289613 has 4 divisors (see below), whose sum is σ = 1307414045280. Its totient is φ = 980560533948.

The previous prime is 1143987289579. The next prime is 1143987289663. The reversal of 1143987289613 is 3169827893411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143987289613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143987289663) 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, 81713377823 + ... + 81713377836.

It is an arithmetic number, because the mean of its divisors is an integer number (326853511320).

Almost surely, 2^{1143987289613} is an apocalyptic number.

It is an amenable number.

1143987289613 is a deficient number, since it is larger than the sum of its proper divisors (163426755667).

1143987289613 is an equidigital number, since it uses as much as digits as its factorization.

1143987289613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163426755666.

The product of its digits is 15676416, while the sum is 62.

The spelling of 1143987289613 in words is "one trillion, one hundred forty-three billion, nine hundred eighty-seven million, two hundred eighty-nine thousand, six hundred thirteen".