1142331221323 has 4 divisors (see below), whose sum is σ = 1142404327440. Its totient is φ = 1142258115208.

The previous prime is 1142331221309. The next prime is 1142331221371. The reversal of 1142331221323 is 3231221332411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142331221323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142331221291 and 1142331221300.

It is not an unprimeable number, because it can be changed into a prime (1142331222323) 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, 36529615 + ... + 36560872.

It is an arithmetic number, because the mean of its divisors is an integer number (285601081860).

Almost surely, 2^{1142331221323} is an apocalyptic number.

1142331221323 is a deficient number, since it is larger than the sum of its proper divisors (73106117).

1142331221323 is an equidigital number, since it uses as much as digits as its factorization.

1142331221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73106116.

The product of its digits is 5184, while the sum is 28.

Adding to 1142331221323 its reverse (3231221332411), we get a palindrome (4373552553734).

The spelling of 1142331221323 in words is "one trillion, one hundred forty-two billion, three hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-three".