320110013281 has 2 divisors, whose sum is σ = 320110013282. Its totient is φ = 320110013280.

The previous prime is 320110013273. The next prime is 320110013323. The reversal of 320110013281 is 182310011023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319271331681 + 838681600 = 565041^2 + 28960^2 .

It is a cyclic number.

It is not a de Polignac number, because 320110013281 - 2³ = 320110013273 is a prime.

It is a super-2 number, since 2×320110013281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320110013261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160055006640 + 160055006641.

It is an arithmetic number, because the mean of its divisors is an integer number (160055006641).

Almost surely, 2^320110013281 is an apocalyptic number.

It is an amenable number.

320110013281 is a deficient number, since it is larger than the sum of its proper divisors (1).

320110013281 is an equidigital number, since it uses as much as digits as its factorization.

320110013281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 320110013281 in words is "three hundred twenty billion, one hundred ten million, thirteen thousand, two hundred eighty-one".