1142442231313 has 4 divisors (see below), whose sum is σ = 1142451831808. Its totient is φ = 1142432630820.

The previous prime is 1142442231283. The next prime is 1142442231323. The reversal of 1142442231313 is 3131322442411.

It is a happy number.

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 1142442231313 - 2²⁵ = 1142408676881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142442231323) 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, 4619481 + ... + 4860502.

It is an arithmetic number, because the mean of its divisors is an integer number (285612957952).

Almost surely, 2^{1142442231313} is an apocalyptic number.

It is an amenable number.

1142442231313 is a deficient number, since it is larger than the sum of its proper divisors (9600495).

1142442231313 is an equidigital number, since it uses as much as digits as its factorization.

1142442231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600494.

The product of its digits is 13824, while the sum is 31.

Adding to 1142442231313 its reverse (3131322442411), we get a palindrome (4273764673724).

The spelling of 1142442231313 in words is "one trillion, one hundred forty-two billion, four hundred forty-two million, two hundred thirty-one thousand, three hundred thirteen".