213053320231 has 4 divisors (see below), whose sum is σ = 213054245712. Its totient is φ = 213052394752.

The previous prime is 213053320229. The next prime is 213053320307. The reversal of 213053320231 is 132023350312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213053320231 - 2¹ = 213053320229 is a prime.

It is a super-2 number, since 2×213053320231² (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 = 213053320196 and 213053320205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213053300231) 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, 182190 + ... + 677716.

It is an arithmetic number, because the mean of its divisors is an integer number (53263561428).

Almost surely, 2^213053320231 is an apocalyptic number.

213053320231 is a deficient number, since it is larger than the sum of its proper divisors (925481).

213053320231 is an equidigital number, since it uses as much as digits as its factorization.

213053320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925480.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 213053320231 its reverse (132023350312), we get a palindrome (345076670543).

The spelling of 213053320231 in words is "two hundred thirteen billion, fifty-three million, three hundred twenty thousand, two hundred thirty-one".