213412233 has 4 divisors (see below), whose sum is σ = 284549648. Its totient is φ = 142274820.

The previous prime is 213412211. The next prime is 213412261. The reversal of 213412233 is 332214312.

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 not a de Polignac number, because 213412233 - 2⁹ = 213411721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213412273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35568703 + ... + 35568708.

It is an arithmetic number, because the mean of its divisors is an integer number (71137412).

Almost surely, 2^213412233 is an apocalyptic number.

It is an amenable number.

213412233 is a deficient number, since it is larger than the sum of its proper divisors (71137415).

213412233 is an equidigital number, since it uses as much as digits as its factorization.

213412233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71137414.

The product of its digits is 864, while the sum is 21.

The square root of 213412233 is about 14608.6355625705. The cubic root of 213412233 is about 597.5942865743.

Adding to 213412233 its reverse (332214312), we get a palindrome (545626545).

The spelling of 213412233 in words is "two hundred thirteen million, four hundred twelve thousand, two hundred thirty-three".