331132021233232 has 20 divisors (see below), whose sum is σ = 644321803125780. Its totient is φ = 164855426878208.

The previous prime is 331132021233191. The next prime is 331132021233239. The reversal of 331132021233232 is 232332120231133.

It can be written as a sum of positive squares in 2 ways, for example, as 117232504140816 + 213899517092416 = 10827396^2 + 14625304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331132021233194 and 331132021233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331132021233239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44411479807 + ... + 44411487262.

It is an arithmetic number, because the mean of its divisors is an integer number (32216090156289).

Almost surely, 2^{331132021233232} is an apocalyptic number.

It is an amenable number.

331132021233232 is a deficient number, since it is larger than the sum of its proper divisors (313189781892548).

331132021233232 is a wasteful number, since it uses less digits than its factorization.

331132021233232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88822967310 (or 88822967304 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 331132021233232 its reverse (232332120231133), we get a palindrome (563464141464365).

The spelling of 331132021233232 in words is "three hundred thirty-one trillion, one hundred thirty-two billion, twenty-one million, two hundred thirty-three thousand, two hundred thirty-two".