320244135453 has 12 divisors (see below), whose sum is σ = 504627122688. Its totient is φ = 194087354760.

The previous prime is 320244135401. The next prime is 320244135469. The reversal of 320244135453 is 354531442023.

320244135453 is a `hidden beast` number, since 3 + 202 + 441 + 3 + 5 + 4 + 5 + 3 = 666.

It is not a de Polignac number, because 320244135453 - 2²⁵ = 320210581021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320244134453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1617394525 + ... + 1617394722.

It is an arithmetic number, because the mean of its divisors is an integer number (42052260224).

Almost surely, 2^320244135453 is an apocalyptic number.

320244135453 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

320244135453 is a deficient number, since it is larger than the sum of its proper divisors (184382987235).

320244135453 is a wasteful number, since it uses less digits than its factorization.

320244135453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234789264 (or 3234789261 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 320244135453 its reverse (354531442023), we get a palindrome (674775577476).

The spelling of 320244135453 in words is "three hundred twenty billion, two hundred forty-four million, one hundred thirty-five thousand, four hundred fifty-three".