320023105249 has 2 divisors, whose sum is σ = 320023105250. Its totient is φ = 320023105248.

The previous prime is 320023105243. The next prime is 320023105277. The reversal of 320023105249 is 942501320023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254476864849 + 65546240400 = 504457^2 + 256020^2 .

It is a cyclic number.

It is not a de Polignac number, because 320023105249 - 2¹¹ = 320023103201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320023105249.

It is not a weakly prime, because it can be changed into another prime (320023105243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160011552624 + 160011552625.

It is an arithmetic number, because the mean of its divisors is an integer number (160011552625).

Almost surely, 2^320023105249 is an apocalyptic number.

It is an amenable number.

320023105249 is a deficient number, since it is larger than the sum of its proper divisors (1).

320023105249 is an equidigital number, since it uses as much as digits as its factorization.

320023105249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 320023105249 in words is "three hundred twenty billion, twenty-three million, one hundred five thousand, two hundred forty-nine".