320023105253 has 4 divisors (see below), whose sum is σ = 320024622540. Its totient is φ = 320021587968.

The previous prime is 320023105249. The next prime is 320023105277. The reversal of 320023105253 is 352501320023.

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 172838084644 + 147185020609 = 415738^2 + 383647^2 .

It is a cyclic number.

It is not a de Polignac number, because 320023105253 - 2² = 320023105249 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 (320023105243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378908 + ... + 885221.

It is an arithmetic number, because the mean of its divisors is an integer number (80006155635).

Almost surely, 2^320023105253 is an apocalyptic number.

It is an amenable number.

320023105253 is a deficient number, since it is larger than the sum of its proper divisors (1517287).

320023105253 is a wasteful number, since it uses less digits than its factorization.

320023105253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517286.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 320023105253 its reverse (352501320023), we get a palindrome (672524425276).

The spelling of 320023105253 in words is "three hundred twenty billion, twenty-three million, one hundred five thousand, two hundred fifty-three".