31233243223122 has 16 divisors (see below), whose sum is σ = 62572902954912. Its totient is φ = 10393344989600.

The previous prime is 31233243223099. The next prime is 31233243223129. The reversal of 31233243223122 is 22132234233213.

It is not an unprimeable number, because it can be changed into a prime (31233243223129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4434017379 + ... + 4434024422.

It is an arithmetic number, because the mean of its divisors is an integer number (3910806434682).

Almost surely, 2^{31233243223122} is an apocalyptic number.

31233243223122 is an abundant number, since it is smaller than the sum of its proper divisors (31339659731790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31233243223122 is a wasteful number, since it uses less digits than its factorization.

31233243223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868042393.

The product of its digits is 62208, while the sum is 33.

Adding to 31233243223122 its reverse (22132234233213), we get a palindrome (53365477456335).

The spelling of 31233243223122 in words is "thirty-one trillion, two hundred thirty-three billion, two hundred forty-three million, two hundred twenty-three thousand, one hundred twenty-two".