1423003140205 has 4 divisors (see below), whose sum is σ = 1707603768252. Its totient is φ = 1138402512160.

The previous prime is 1423003140203. The next prime is 1423003140253. The reversal of 1423003140205 is 5020413003241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 466976789449 + 956026350756 = 683357^2 + 977766^2 .

It is not a de Polignac number, because 1423003140205 - 2¹ = 1423003140203 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 1423003140205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423003140203) 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, 142300314016 + ... + 142300314025.

It is an arithmetic number, because the mean of its divisors is an integer number (426900942063).

Almost surely, 2^{1423003140205} is an apocalyptic number.

It is an amenable number.

1423003140205 is a deficient number, since it is larger than the sum of its proper divisors (284600628047).

1423003140205 is an equidigital number, since it uses as much as digits as its factorization.

1423003140205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284600628046.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1423003140205 its reverse (5020413003241), we get a palindrome (6443416143446).

The spelling of 1423003140205 in words is "one trillion, four hundred twenty-three billion, three million, one hundred forty thousand, two hundred five".