320135315233 has 4 divisors (see below), whose sum is σ = 327580322608. Its totient is φ = 312690307860.

The previous prime is 320135315209. The next prime is 320135315239. The reversal of 320135315233 is 332513531023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320135315233 - 2²⁵ = 320101760801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320135315195 and 320135315204.

It is not an unprimeable number, because it can be changed into a prime (320135315239) 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, 3722503623 + ... + 3722503708.

It is an arithmetic number, because the mean of its divisors is an integer number (81895080652).

Almost surely, 2^320135315233 is an apocalyptic number.

It is an amenable number.

320135315233 is a deficient number, since it is larger than the sum of its proper divisors (7445007375).

320135315233 is an equidigital number, since it uses as much as digits as its factorization.

320135315233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7445007374.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 320135315233 its reverse (332513531023), we get a palindrome (652648846256).

The spelling of 320135315233 in words is "three hundred twenty billion, one hundred thirty-five million, three hundred fifteen thousand, two hundred thirty-three".