213000233 has 4 divisors (see below), whose sum is σ = 213753168. Its totient is φ = 212247300.

The previous prime is 213000211. The next prime is 213000239. The reversal of 213000233 is 332000312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213000233 - 2²² = 208805929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213000239) 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, 376043 + ... + 376608.

It is an arithmetic number, because the mean of its divisors is an integer number (53438292).

Almost surely, 2^213000233 is an apocalyptic number.

It is an amenable number.

213000233 is a deficient number, since it is larger than the sum of its proper divisors (752935).

213000233 is an equidigital number, since it uses as much as digits as its factorization.

213000233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752934.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 213000233 is about 14594.5275017727. The cubic root of 213000233 is about 597.2094797443.

Adding to 213000233 its reverse (332000312), we get a palindrome (545000545).

The spelling of 213000233 in words is "two hundred thirteen million, two hundred thirty-three", and thus it is an aban number.