320221230311 has 2 divisors, whose sum is σ = 320221230312. Its totient is φ = 320221230310.

The previous prime is 320221230257. The next prime is 320221230319. The reversal of 320221230311 is 113032122023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320221230311 - 2⁶ = 320221230247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320221230319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160110615155 + 160110615156.

It is an arithmetic number, because the mean of its divisors is an integer number (160110615156).

Almost surely, 2^320221230311 is an apocalyptic number.

320221230311 is a deficient number, since it is larger than the sum of its proper divisors (1).

320221230311 is an equidigital number, since it uses as much as digits as its factorization.

320221230311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320221230311 its reverse (113032122023), we get a palindrome (433253352334).

The spelling of 320221230311 in words is "three hundred twenty billion, two hundred twenty-one million, two hundred thirty thousand, three hundred eleven".