213033322031 has 4 divisors (see below), whose sum is σ = 217565945952. Its totient is φ = 208500698112.

The previous prime is 213033321923. The next prime is 213033322039. The reversal of 213033322031 is 130223330312.

213033322031 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.

It is a cyclic number.

It is not a de Polignac number, because 213033322031 - 2¹⁸ = 213033059887 is a prime.

It is a super-2 number, since 2×213033322031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213033321988 and 213033322006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213033322039) 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, 2266311890 + ... + 2266311983.

It is an arithmetic number, because the mean of its divisors is an integer number (54391486488).

Almost surely, 2^213033322031 is an apocalyptic number.

213033322031 is a deficient number, since it is larger than the sum of its proper divisors (4532623921).

213033322031 is an equidigital number, since it uses as much as digits as its factorization.

213033322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532623920.

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

Adding to 213033322031 its reverse (130223330312), we get a palindrome (343256652343).

The spelling of 213033322031 in words is "two hundred thirteen billion, thirty-three million, three hundred twenty-two thousand, thirty-one".