320240442311 has 2 divisors, whose sum is σ = 320240442312. Its totient is φ = 320240442310.

The previous prime is 320240442283. The next prime is 320240442371. The reversal of 320240442311 is 113244042023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320240442311 - 2¹⁸ = 320240180167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320240442371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160120221155 + 160120221156.

It is an arithmetic number, because the mean of its divisors is an integer number (160120221156).

Almost surely, 2^320240442311 is an apocalyptic number.

320240442311 is a deficient number, since it is larger than the sum of its proper divisors (1).

320240442311 is an equidigital number, since it uses as much as digits as its factorization.

320240442311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 320240442311 its reverse (113244042023), we get a palindrome (433484484334).

The spelling of 320240442311 in words is "three hundred twenty billion, two hundred forty million, four hundred forty-two thousand, three hundred eleven".