1320123330101 has 2 divisors, whose sum is σ = 1320123330102. Its totient is φ = 1320123330100.

The previous prime is 1320123330091. The next prime is 1320123330107. The reversal of 1320123330101 is 1010333210231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732309774001 + 587813556100 = 855751^2 + 766690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320123330101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320123330107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660061665050 + 660061665051.

It is an arithmetic number, because the mean of its divisors is an integer number (660061665051).

Almost surely, 2^{1320123330101} is an apocalyptic number.

It is an amenable number.

1320123330101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320123330101 is an equidigital number, since it uses as much as digits as its factorization.

1320123330101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1320123330101 its reverse (1010333210231), we get a palindrome (2330456540332).

The spelling of 1320123330101 in words is "one trillion, three hundred twenty billion, one hundred twenty-three million, three hundred thirty thousand, one hundred one".