31233232212 has 48 divisors (see below), whose sum is σ = 89695439232. Its totient is φ = 8237335680.

The previous prime is 31233232193. The next prime is 31233232229. The reversal of 31233232212 is 21223233213.

It is a nude number because it is divisible by every one of its digits.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 14299839 + ... + 14302022.

It is an arithmetic number, because the mean of its divisors is an integer number (1868654984).

Almost surely, 2^31233232212 is an apocalyptic number.

It is an amenable number.

31233232212 is an abundant number, since it is smaller than the sum of its proper divisors (58462207020).

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

31233232212 is a wasteful number, since it uses less digits than its factorization.

31233232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28601888 (or 28601886 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 31233232212 its reverse (21223233213), we get a palindrome (52456465425).

The spelling of 31233232212 in words is "thirty-one billion, two hundred thirty-three million, two hundred thirty-two thousand, two hundred twelve".