1142243343013 has 4 divisors (see below), whose sum is σ = 1142438838048. Its totient is φ = 1142047847980.

The previous prime is 1142243342993. The next prime is 1142243343019. The reversal of 1142243343013 is 3103433422411.

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-1142243343013 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 (1142243343019) 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, 97738753 + ... + 97750438.

It is an arithmetic number, because the mean of its divisors is an integer number (285609709512).

Almost surely, 2^{1142243343013} is an apocalyptic number.

It is an amenable number.

1142243343013 is a deficient number, since it is larger than the sum of its proper divisors (195495035).

1142243343013 is an equidigital number, since it uses as much as digits as its factorization.

1142243343013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195495034.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1142243343013 its reverse (3103433422411), we get a palindrome (4245676765424).

The spelling of 1142243343013 in words is "one trillion, one hundred forty-two billion, two hundred forty-three million, three hundred forty-three thousand, thirteen".