231212031033203 has 16 divisors (see below), whose sum is σ = 252758996363520. Its totient is φ = 209753047346400.

The previous prime is 231212031033133. The next prime is 231212031033227. The reversal of 231212031033203 is 302330130212132.

It is a cyclic number.

It is not a de Polignac number, because 231212031033203 - 2⁸ = 231212031032947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231212031033283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140117048 + ... + 141757578.

It is an arithmetic number, because the mean of its divisors is an integer number (15797437272720).

Almost surely, 2^{231212031033203} is an apocalyptic number.

231212031033203 is a deficient number, since it is larger than the sum of its proper divisors (21546965330317).

231212031033203 is a wasteful number, since it uses less digits than its factorization.

231212031033203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667338.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 231212031033203 its reverse (302330130212132), we get a palindrome (533542161245335).

The spelling of 231212031033203 in words is "two hundred thirty-one trillion, two hundred twelve billion, thirty-one million, thirty-three thousand, two hundred three".