213020223331 has 4 divisors (see below), whose sum is σ = 213212307600. Its totient is φ = 212828139064.

The previous prime is 213020223301. The next prime is 213020223337. The reversal of 213020223331 is 133322020312.

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 213020223331 - 2⁷ = 213020223203 is a prime.

It is a super-2 number, since 2×213020223331² (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 (213020223337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96040471 + ... + 96042688.

It is an arithmetic number, because the mean of its divisors is an integer number (53303076900).

Almost surely, 2^213020223331 is an apocalyptic number.

213020223331 is a deficient number, since it is larger than the sum of its proper divisors (192084269).

213020223331 is a wasteful number, since it uses less digits than its factorization.

213020223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192084268.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213020223331 its reverse (133322020312), we get a palindrome (346342243643).

The spelling of 213020223331 in words is "two hundred thirteen billion, twenty million, two hundred twenty-three thousand, three hundred thirty-one".