320323012133 has 4 divisors (see below), whose sum is σ = 320324829600. Its totient is φ = 320321194668.

The previous prime is 320323012129. The next prime is 320323012153. The reversal of 320323012133 is 331210323023.

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 320323012133 - 2² = 320323012129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320323012099 and 320323012108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320323012153) 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, 612083 + ... + 1007616.

It is an arithmetic number, because the mean of its divisors is an integer number (80081207400).

Almost surely, 2^320323012133 is an apocalyptic number.

It is an amenable number.

320323012133 is a deficient number, since it is larger than the sum of its proper divisors (1817467).

320323012133 is a wasteful number, since it uses less digits than its factorization.

320323012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817466.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 320323012133 its reverse (331210323023), we get a palindrome (651533335156).

The spelling of 320323012133 in words is "three hundred twenty billion, three hundred twenty-three million, twelve thousand, one hundred thirty-three".