213122200331 has 4 divisors (see below), whose sum is σ = 213138704952. Its totient is φ = 213105695712.

The previous prime is 213122200303. The next prime is 213122200337. The reversal of 213122200331 is 133002221312.

213122200331 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 213122200331 - 2¹⁴ = 213122183947 is a prime.

It is a super-2 number, since 2×213122200331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213122200337) 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, 8232926 + ... + 8258771.

It is an arithmetic number, because the mean of its divisors is an integer number (53284676238).

Almost surely, 2^213122200331 is an apocalyptic number.

213122200331 is a deficient number, since it is larger than the sum of its proper divisors (16504621).

213122200331 is a wasteful number, since it uses less digits than its factorization.

213122200331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16504620.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213122200331 its reverse (133002221312), we get a palindrome (346124421643).

The spelling of 213122200331 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred thousand, three hundred thirty-one".