1321230230323 has 4 divisors (see below), whose sum is σ = 1339329274648. Its totient is φ = 1303131186000.

The previous prime is 1321230230317. The next prime is 1321230230339. The reversal of 1321230230323 is 3230320321231.

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 1321230230323 - 2¹³ = 1321230222131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321230231323) 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, 9049522053 + ... + 9049522198.

It is an arithmetic number, because the mean of its divisors is an integer number (334832318662).

Almost surely, 2^{1321230230323} is an apocalyptic number.

1321230230323 is a deficient number, since it is larger than the sum of its proper divisors (18099044325).

1321230230323 is an equidigital number, since it uses as much as digits as its factorization.

1321230230323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18099044324.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1321230230323 its reverse (3230320321231), we get a palindrome (4551550551554).

The spelling of 1321230230323 in words is "one trillion, three hundred twenty-one billion, two hundred thirty million, two hundred thirty thousand, three hundred twenty-three".