1320231401323 has 2 divisors, whose sum is σ = 1320231401324. Its totient is φ = 1320231401322.

The previous prime is 1320231401317. The next prime is 1320231401341. The reversal of 1320231401323 is 3231041320231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320231401323 - 2²⁹ = 1319694530411 is a prime.

It is a super-3 number, since 3×1320231401323³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1320231401303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660115700661 + 660115700662.

It is an arithmetic number, because the mean of its divisors is an integer number (660115700662).

Almost surely, 2^{1320231401323} is an apocalyptic number.

1320231401323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320231401323 is an equidigital number, since it uses as much as digits as its factorization.

1320231401323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1320231401323 its reverse (3231041320231), we get a palindrome (4551272721554).

The spelling of 1320231401323 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, four hundred one thousand, three hundred twenty-three".