231312100033 has 4 divisors (see below), whose sum is σ = 264356685760. Its totient is φ = 198267514308.

The previous prime is 231312100031. The next prime is 231312100049. The reversal of 231312100033 is 330001213132.

231312100033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231312100033 - 2¹ = 231312100031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231312100031) 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 3 ways as a sum of consecutive naturals, for example, 16522292853 + ... + 16522292866.

It is an arithmetic number, because the mean of its divisors is an integer number (66089171440).

Almost surely, 2^231312100033 is an apocalyptic number.

It is an amenable number.

231312100033 is a deficient number, since it is larger than the sum of its proper divisors (33044585727).

231312100033 is an equidigital number, since it uses as much as digits as its factorization.

231312100033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33044585726.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231312100033 its reverse (330001213132), we get a palindrome (561313313165).

The spelling of 231312100033 in words is "two hundred thirty-one billion, three hundred twelve million, one hundred thousand, thirty-three".