31233543122 has 16 divisors (see below), whose sum is σ = 47291496000. Its totient is φ = 15470397360.

The previous prime is 31233543109. The next prime is 31233543139. The reversal of 31233543122 is 22134533213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80204 + ... + 262487.

It is an arithmetic number, because the mean of its divisors is an integer number (2955718500).

Almost surely, 2^31233543122 is an apocalyptic number.

31233543122 is a deficient number, since it is larger than the sum of its proper divisors (16057952878).

31233543122 is a wasteful number, since it uses less digits than its factorization.

31233543122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343121.

The product of its digits is 12960, while the sum is 29.

Subtracting from 31233543122 its reverse (22134533213), we obtain a palindrome (9099009909).

The spelling of 31233543122 in words is "thirty-one billion, two hundred thirty-three million, five hundred forty-three thousand, one hundred twenty-two".