320203422365331 has 16 divisors (see below), whose sum is σ = 427036937158656. Its totient is φ = 213419432740416.

The previous prime is 320203422365269. The next prime is 320203422365353. The reversal of 320203422365331 is 133563224302023.

It is a happy number.

It is not a de Polignac number, because 320203422365331 - 2²³ = 320203413976723 is a prime.

It is a super-2 number, since 2×320203422365331² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320203422365331.

It is not an unprimeable number, because it can be changed into a prime (320203422325331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269077866 + ... + 270265248.

It is an arithmetic number, because the mean of its divisors is an integer number (26689808572416).

Almost surely, 2^{320203422365331} is an apocalyptic number.

320203422365331 is a deficient number, since it is larger than the sum of its proper divisors (106833514793325).

320203422365331 is a wasteful number, since it uses less digits than its factorization.

320203422365331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208162.

The product of its (nonzero) digits is 466560, while the sum is 39.

Adding to 320203422365331 its reverse (133563224302023), we get a palindrome (453766646667354).

The spelling of 320203422365331 in words is "three hundred twenty trillion, two hundred three billion, four hundred twenty-two million, three hundred sixty-five thousand, three hundred thirty-one".