320025143135 has 4 divisors (see below), whose sum is σ = 384030171768. Its totient is φ = 256020114504.

The previous prime is 320025143117. The next prime is 320025143149. The reversal of 320025143135 is 531341520023.

It is a happy number.

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 320025143135 - 2¹² = 320025139039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320025143098 and 320025143107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32002514309 + ... + 32002514318.

It is an arithmetic number, because the mean of its divisors is an integer number (96007542942).

Almost surely, 2^320025143135 is an apocalyptic number.

320025143135 is a deficient number, since it is larger than the sum of its proper divisors (64005028633).

320025143135 is an equidigital number, since it uses as much as digits as its factorization.

320025143135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64005028632.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 320025143135 its reverse (531341520023), we get a palindrome (851366663158).

The spelling of 320025143135 in words is "three hundred twenty billion, twenty-five million, one hundred forty-three thousand, one hundred thirty-five".