1320121020323 has 8 divisors (see below), whose sum is σ = 1574305813248. Its totient is φ = 1082335246344.

The previous prime is 1320121020299. The next prime is 1320121020329. The reversal of 1320121020323 is 3230201210231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320121020323 - 2³⁴ = 1302941151139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320121020295 and 1320121020304.

It is not an unprimeable number, because it can be changed into a prime (1320121020329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4099754561 + ... + 4099754882.

It is an arithmetic number, because the mean of its divisors is an integer number (196788226656).

Almost surely, 2^{1320121020323} is an apocalyptic number.

1320121020323 is a deficient number, since it is larger than the sum of its proper divisors (254184792925).

1320121020323 is an equidigital number, since it uses as much as digits as its factorization.

1320121020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199509473.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1320121020323 its reverse (3230201210231), we get a palindrome (4550322230554).

The spelling of 1320121020323 in words is "one trillion, three hundred twenty billion, one hundred twenty-one million, twenty thousand, three hundred twenty-three".