14203223136605 has 4 divisors (see below), whose sum is σ = 17043867763932. Its totient is φ = 11362578509280.

The previous prime is 14203223136601. The next prime is 14203223136631. The reversal of 14203223136605 is 50663132230241.

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 6340958551876 + 7862264584729 = 2518126^2 + 2803973^2 .

It is not a de Polignac number, because 14203223136605 - 2² = 14203223136601 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 (14203223136601) 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, 1420322313656 + ... + 1420322313665.

It is an arithmetic number, because the mean of its divisors is an integer number (4260966940983).

Almost surely, 2^{14203223136605} is an apocalyptic number.

It is an amenable number.

14203223136605 is a deficient number, since it is larger than the sum of its proper divisors (2840644627327).

14203223136605 is an equidigital number, since it uses as much as digits as its factorization.

14203223136605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840644627326.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 14203223136605 its reverse (50663132230241), we get a palindrome (64866355366846).

The spelling of 14203223136605 in words is "fourteen trillion, two hundred three billion, two hundred twenty-three million, one hundred thirty-six thousand, six hundred five".