320023121311 has 2 divisors, whose sum is σ = 320023121312. Its totient is φ = 320023121310.

The previous prime is 320023121281. The next prime is 320023121323. The reversal of 320023121311 is 113121320023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320023121311 - 2³¹ = 317875637663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320023125311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160011560655 + 160011560656.

It is an arithmetic number, because the mean of its divisors is an integer number (160011560656).

Almost surely, 2^320023121311 is an apocalyptic number.

320023121311 is a deficient number, since it is larger than the sum of its proper divisors (1).

320023121311 is an equidigital number, since it uses as much as digits as its factorization.

320023121311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 320023121311 its reverse (113121320023), we get a palindrome (433144441334).

The spelling of 320023121311 in words is "three hundred twenty billion, twenty-three million, one hundred twenty-one thousand, three hundred eleven".