213453211 has 2 divisors, whose sum is σ = 213453212. Its totient is φ = 213453210.

The previous prime is 213453203. The next prime is 213453217. The reversal of 213453211 is 112354312.

It is a happy number.

213453211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213453211 - 2³ = 213453203 is a prime.

It is not a weakly prime, because it can be changed into another prime (213453217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106726605 + 106726606.

It is an arithmetic number, because the mean of its divisors is an integer number (106726606).

Almost surely, 2^213453211 is an apocalyptic number.

213453211 is a deficient number, since it is larger than the sum of its proper divisors (1).

213453211 is an equidigital number, since it uses as much as digits as its factorization.

213453211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 213453211 is about 14610.0380218533. The cubic root of 213453211 is about 597.6325328221.

The spelling of 213453211 in words is "two hundred thirteen million, four hundred fifty-three thousand, two hundred eleven".