212331030233 has 4 divisors (see below), whose sum is σ = 242664034560. Its totient is φ = 181998025908.

The previous prime is 212331030211. The next prime is 212331030271. The reversal of 212331030233 is 332030133212.

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 212331030233 - 2¹⁴ = 212331013849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212331030199 and 212331030208.

It is not an unprimeable number, because it can be changed into a prime (212331032233) 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 3 ways as a sum of consecutive naturals, for example, 15166502153 + ... + 15166502166.

It is an arithmetic number, because the mean of its divisors is an integer number (60666008640).

Almost surely, 2^212331030233 is an apocalyptic number.

It is an amenable number.

212331030233 is a deficient number, since it is larger than the sum of its proper divisors (30333004327).

212331030233 is an equidigital number, since it uses as much as digits as its factorization.

212331030233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30333004326.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 212331030233 its reverse (332030133212), we get a palindrome (544361163445).

The spelling of 212331030233 in words is "two hundred twelve billion, three hundred thirty-one million, thirty thousand, two hundred thirty-three".