1143522111013 has 4 divisors (see below), whose sum is σ = 1143531227680. Its totient is φ = 1143512994348.

The previous prime is 1143522110957. The next prime is 1143522111041. The reversal of 1143522111013 is 3101112253411.

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 not a de Polignac number, because 1143522111013 - 2²⁹ = 1142985240101 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 (1143522111913) 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, 4367523 + ... + 4621936.

It is an arithmetic number, because the mean of its divisors is an integer number (285882806920).

Almost surely, 2^{1143522111013} is an apocalyptic number.

It is an amenable number.

1143522111013 is a deficient number, since it is larger than the sum of its proper divisors (9116667).

1143522111013 is an equidigital number, since it uses as much as digits as its factorization.

1143522111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9116666.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 1143522111013 its reverse (3101112253411), we get a palindrome (4244634364424).

The spelling of 1143522111013 in words is "one trillion, one hundred forty-three billion, five hundred twenty-two million, one hundred eleven thousand, thirteen".