213253343 has 2 divisors, whose sum is σ = 213253344. Its totient is φ = 213253342.

The previous prime is 213253333. The next prime is 213253351. The reversal of 213253343 is 343352312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213253343 - 2⁸ = 213253087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213253303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106626671 + 106626672.

It is an arithmetic number, because the mean of its divisors is an integer number (106626672).

Almost surely, 2^213253343 is an apocalyptic number.

213253343 is a deficient number, since it is larger than the sum of its proper divisors (1).

213253343 is an equidigital number, since it uses as much as digits as its factorization.

213253343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 26.

The square root of 213253343 is about 14603.1963282016. The cubic root of 213253343 is about 597.4459424843.

The spelling of 213253343 in words is "two hundred thirteen million, two hundred fifty-three thousand, three hundred forty-three".