31233210133 has 8 divisors (see below), whose sum is σ = 31997623896. Its totient is φ = 30468921600.

The previous prime is 31233210121. The next prime is 31233210143. The reversal of 31233210133 is 33101233213.

It can be written as a sum of positive squares in 4 ways, for example, as 13730449329 + 17502760804 = 117177^2 + 132298^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31233210133 - 2¹⁷ = 31233079061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233210143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655663 + ... + 701683.

It is an arithmetic number, because the mean of its divisors is an integer number (3999702987).

Almost surely, 2^31233210133 is an apocalyptic number.

It is an amenable number.

31233210133 is a deficient number, since it is larger than the sum of its proper divisors (764413763).

31233210133 is a wasteful number, since it uses less digits than its factorization.

31233210133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62615.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31233210133 its reverse (33101233213), we get a palindrome (64334443346).

The spelling of 31233210133 in words is "thirty-one billion, two hundred thirty-three million, two hundred ten thousand, one hundred thirty-three".