213204214233 has 20 divisors (see below), whose sum is σ = 323711405028. Its totient is φ = 139806038880.

The previous prime is 213204214229. The next prime is 213204214291. The reversal of 213204214233 is 332412402312.

213204214233 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 0 + 421 + 4 + 233 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43947671769 + 169256542464 = 209637^2 + 411408^2 .

It is not a de Polignac number, because 213204214233 - 2² = 213204214229 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213204214197 and 213204214206.

It is not an unprimeable number, because it can be changed into a prime (213204214033) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21570066 + ... + 21579947.

Almost surely, 2^213204214233 is an apocalyptic number.

It is an amenable number.

213204214233 is a deficient number, since it is larger than the sum of its proper divisors (110507190795).

213204214233 is an equidigital number, since it uses as much as digits as its factorization.

213204214233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43150086 (or 43150077 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 213204214233 its reverse (332412402312), we get a palindrome (545616616545).

The spelling of 213204214233 in words is "two hundred thirteen billion, two hundred four million, two hundred fourteen thousand, two hundred thirty-three".