1442423220323 has 4 divisors (see below), whose sum is σ = 1456704638448. Its totient is φ = 1428141802200.

The previous prime is 1442423220319. The next prime is 1442423220377. The reversal of 1442423220323 is 3230223242441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442423220323 - 2² = 1442423220319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442423220323.

It is not an unprimeable number, because it can be changed into a prime (1442423720323) 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, 7140708911 + ... + 7140709112.

It is an arithmetic number, because the mean of its divisors is an integer number (364176159612).

Almost surely, 2^{1442423220323} is an apocalyptic number.

1442423220323 is a deficient number, since it is larger than the sum of its proper divisors (14281418125).

1442423220323 is a wasteful number, since it uses less digits than its factorization.

1442423220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281418124.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 1442423220323 its reverse (3230223242441), we get a palindrome (4672646462764).

The spelling of 1442423220323 in words is "one trillion, four hundred forty-two billion, four hundred twenty-three million, two hundred twenty thousand, three hundred twenty-three".