320123023013 has 2 divisors, whose sum is σ = 320123023014. Its totient is φ = 320123023012.

The previous prime is 320123022997. The next prime is 320123023019. The reversal of 320123023013 is 310320321023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320121718849 + 1304164 = 565793^2 + 1142^2 .

It is a cyclic number.

It is not a de Polignac number, because 320123023013 - 2⁴ = 320123022997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320123023019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160061511506 + 160061511507.

It is an arithmetic number, because the mean of its divisors is an integer number (160061511507).

Almost surely, 2^320123023013 is an apocalyptic number.

It is an amenable number.

320123023013 is a deficient number, since it is larger than the sum of its proper divisors (1).

320123023013 is an equidigital number, since it uses as much as digits as its factorization.

320123023013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 320123023013 its reverse (310320321023), we get a palindrome (630443344036).

The spelling of 320123023013 in words is "three hundred twenty billion, one hundred twenty-three million, twenty-three thousand, thirteen".