1320323310233 has 4 divisors (see below), whose sum is σ = 1321567725348. Its totient is φ = 1319078895120.

The previous prime is 1320323310143. The next prime is 1320323310281. The reversal of 1320323310233 is 3320133230231.

It is a happy number.

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 1133952376384 + 186370933849 = 1064872^2 + 431707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320323310233 - 2²⁴ = 1320306533017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320323310283) 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, 622205966 + ... + 622208087.

It is an arithmetic number, because the mean of its divisors is an integer number (330391931337).

Almost surely, 2^{1320323310233} is an apocalyptic number.

It is an amenable number.

1320323310233 is a deficient number, since it is larger than the sum of its proper divisors (1244415115).

1320323310233 is a wasteful number, since it uses less digits than its factorization.

1320323310233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244415114.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 1320323310233 its reverse (3320133230231), we get a palindrome (4640456540464).

The spelling of 1320323310233 in words is "one trillion, three hundred twenty billion, three hundred twenty-three million, three hundred ten thousand, two hundred thirty-three".