213011033233 has 4 divisors (see below), whose sum is σ = 222272382528. Its totient is φ = 203749683940.

The previous prime is 213011033177. The next prime is 213011033269. The reversal of 213011033233 is 332330110312.

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 a de Polignac number, because none of the positive numbers 2^k-213011033233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213011033933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630674613 + ... + 4630674658.

It is an arithmetic number, because the mean of its divisors is an integer number (55568095632).

Almost surely, 2^213011033233 is an apocalyptic number.

213011033233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213011033233 is a deficient number, since it is larger than the sum of its proper divisors (9261349295).

213011033233 is an equidigital number, since it uses as much as digits as its factorization.

213011033233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9261349294.

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

Adding to 213011033233 its reverse (332330110312), we get a palindrome (545341143545).

The spelling of 213011033233 in words is "two hundred thirteen billion, eleven million, thirty-three thousand, two hundred thirty-three".