4231321220133 has 96 divisors (see below), whose sum is σ = 7105639417344. Its totient is φ = 2376380160000.

The previous prime is 4231321220129. The next prime is 4231321220141. The reversal of 4231321220133 is 3310221231324.

4231321220133 is a `hidden beast` number, since 4 + 2 + 313 + 212 + 2 + 0 + 133 = 666.

It is not a de Polignac number, because 4231321220133 - 2² = 4231321220129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4231321220097 and 4231321220106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231321220143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3203119113 + ... + 3203120433.

It is an arithmetic number, because the mean of its divisors is an integer number (74017077264).

Almost surely, 2^{4231321220133} is an apocalyptic number.

It is an amenable number.

4231321220133 is a deficient number, since it is larger than the sum of its proper divisors (2874318197211).

4231321220133 is a wasteful number, since it uses less digits than its factorization.

4231321220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 4231321220133 its reverse (3310221231324), we get a palindrome (7541542451457).

The spelling of 4231321220133 in words is "four trillion, two hundred thirty-one billion, three hundred twenty-one million, two hundred twenty thousand, one hundred thirty-three".