31233021332 has 24 divisors (see below), whose sum is σ = 57541710240. Its totient is φ = 14792738400.

The previous prime is 31233021331. The next prime is 31233021353. The reversal of 31233021332 is 23312033213.

It is a junction number, because it is equal to n+sod(n) for n = 31233021298 and 31233021307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233021331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731723 + ... + 773229.

It is an arithmetic number, because the mean of its divisors is an integer number (2397571260).

Almost surely, 2^31233021332 is an apocalyptic number.

It is an amenable number.

31233021332 is a deficient number, since it is larger than the sum of its proper divisors (26308688908).

31233021332 is a wasteful number, since it uses less digits than its factorization.

31233021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51431 (or 51429 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31233021332 its reverse (23312033213), we get a palindrome (54545054545).

The spelling of 31233021332 in words is "thirty-one billion, two hundred thirty-three million, twenty-one thousand, three hundred thirty-two".