231031312020322 has 64 divisors (see below), whose sum is σ = 421905703363200. Its totient is φ = 93628212321280.

The previous prime is 231031312020227. The next prime is 231031312020337. The reversal of 231031312020322 is 223020213130132.

231031312020322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200378572 + ... + 201528247.

It is an arithmetic number, because the mean of its divisors is an integer number (6592276615050).

Almost surely, 2^{231031312020322} is an apocalyptic number.

231031312020322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231031312020322 is a deficient number, since it is larger than the sum of its proper divisors (190874391342878).

231031312020322 is a wasteful number, since it uses less digits than its factorization.

231031312020322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401906931.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231031312020322 its reverse (223020213130132), we get a palindrome (454051525150454).

The spelling of 231031312020322 in words is "two hundred thirty-one trillion, thirty-one billion, three hundred twelve million, twenty thousand, three hundred twenty-two".