213133230231 has 8 divisors (see below), whose sum is σ = 284179784064. Its totient is φ = 142087748280.

The previous prime is 213133230217. The next prime is 213133230281. The reversal of 213133230231 is 132032331312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213133230231 - 2¹⁰ = 213133229207 is a prime.

It is a super-2 number, since 2×213133230231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213133230281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573246 + ... + 868836.

It is an arithmetic number, because the mean of its divisors is an integer number (35522473008).

Almost surely, 2^213133230231 is an apocalyptic number.

213133230231 is a deficient number, since it is larger than the sum of its proper divisors (71046553833).

213133230231 is a wasteful number, since it uses less digits than its factorization.

213133230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535941.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 213133230231 its reverse (132032331312), we get a palindrome (345165561543).

The spelling of 213133230231 in words is "two hundred thirteen billion, one hundred thirty-three million, two hundred thirty thousand, two hundred thirty-one".